Tap into Volume 1, Number 1 Learning January /February 2008 A Science Ezine for Kids Water Check out our website: http://www.spigotsciencemag.com In this Issue: * All about Water * Water Cycle * Gargoyles *SPIGOT Ancient Water System * Water 1and Math * Deserts * Books ~ http://www.spigotsciencemag.com January/February 2008 * Experiments, Puzzles, and More! Dive in!! Premier Welcome to Issue Spigot Science Magazine A Message from the Publishers Welcome! You are reading the very first issue of SPIGOT SCIENCE MAGAZINE for kids. We are all about science. And science is all about YOU and everything around you, such as: your breathing, eating, sleeping your world spinning, erupting, freezing, warming your garden growing and blooming Get the Most rockets blasting into space astronauts bouncing on the moon from SPIGOT hurricanes and tornadoes changing our planet words flying through the air to computers 1. Read it! There is a lot of great information in each article. 2. Do the activities. Each article has an activity or link to help you learn more about the topic. We learn when we do cell phones taking pictures music playing in our ears Learn about it all in SPIGOT. Our magazine brings you information, new and old ideas, and fun experiments. SPIGOT asks science questions for you to ponder. SPIGOT is a FREE magazine. It’s yours for the downloading at our web site. http://www.spigotsciencemag.com We’d like to hear from you. Email us ([email protected]) and tell us what you think about SPIGOT. Tell all your friends about us. Let them know that SPIGOT is where you learn about science and have fun! Enjoy! David Cochran and Valeria B. Girandola, Publishers SPIGOT ~ http://www.spigotsciencemag.com 2 things. 3. Go to the web site to find more information. 4. Talk about SPIGOT with your friends, teachers, and parents. 5. Tell your friends to subscribe. It’s FREE because we want you to Tap into Learning! January/February 2008 Volume 1, Number 1 January/February 2008 In this Issue A Message from the Publishers ..... 2 SOCIAL STUDIES Connection Deserts of the World ................................ 18 Why SPIGOT? .................................... 5 about our name learn about desertification A Gift from the Desert ............................. 19 energy from the desert SCIENCE Connection Interesting Things about Water ............. 6 What is water anyway? More Interesting Things about Water ... 7 capillary action and more! Even More Interesting Things about Water .................................. 8 Frozen Water............................................ 20 all about glaciers A Gift from the North Pole ..................... 21 a fortune in oil Weird and Wonderful Waterspouts ....... 22 gargoyles by Rebecca Creswell Ancient Water System ............................. 25 the aqueducts of Rome states of water Messing Around with Water .................. 9 activities to learn about water The Hydrologic Cycle .............................. 11 HEALTH Connection Here’s to Your Health ............................. 26 watering our bodies Where did all the puddles go? How Much Water Do You Drink? ......... 27 keeping track of water intake GEOGRAPHY Connection Where in the World is Water? ................ 12 1887 world map, water graph ARTS Connection Making Music with Water ...................... 28 use drinking glasses to make music MATH Connection Water by the Numbers ............................ 13 How heavy is water? LANGUAGE ARTS Connection Water, Water, .......................................... 10 TECHNOLOGY Connection Research projects Water Pollution ............................ 29 Seven Underwater Wonders ....... 30 a poem by Eileen Peluso Water Falls, Land Moves ........................ 14 A dramatic reading Water Puzzles ........................................... 16 BOOKS and LINKS Websites and Books ................................. 31 book reviews by Dr. Pat Richwine build your water vocabulary SPIGOT ~ http://www.spigotsciencemag.com \ 3 January/February 2008 Our Mission Spigot Science Magazine Important Legal Information Spigot Science Magazine is owned and operated by The mission of Spigot Science Magazine is to help children understand how and why the world works and to inspire young minds to be curious and thoughtful stewards of the world that will be theirs one day. Daval Publications, LLC PO Box 103 Wonder about Water Blawenburg, NJ 08504 As you read this issue of SPIGOT think about these questions and look for the answers. David Cochran, EdD, Publisher, and Chief Learning Officer 1. What is there about water that makes it so valuable to humans and to every other form of life on earth? Valeria B. Girandola, MSEd, Publisher and Editor-in-Chief Official Website: http://www.spigotsciencemag.com 2. How much of the world is covered with water? Email address: [email protected] 3. How much water do we need to drink to survive? Staff writers: David Cochran Valeria B. Girandola 4. What makes a desert? 5. Can cold areas be deserts too? Photo/Graphic Credits Cover photo from PDPhoto: http://www.pdphoto.org 6. What can we do about water pollution? Most pictures in this magazine are from Microsoft Media Elements and their inclusion complies with the terms of their permitted use. 7. What is the water cycle and why is it so important to us? 8. How did people in ancient Rome get water from the mountains to their towns? Additional credits are cited on the pages where pictures appear. 9. Why were waterspouts, called gargoyles, made to look like monsters? Publication Schedule Spigot Science Magazine is published online five times per year in September, November, January, March, and May. It is a free magazine. 10. How can we make music with water? Copying/Using Articles Articles from this publication may be used in schools or homeschooling without permission. Articles may not be distributed for commercial use without the written permission of Daval Publications, LLC. Copyright © 2008. All rights reserved. SPIGOT ~ http://www.spigotsciencemag.com 4 January/February 2008 About our Name Why Spigot? First thing in the morning, we turn on the SPIGOT. We splash water from the SPIGOT onto our face. Wake up! We take a long drink of cool water from the SPIGOT. Refreshing! We brush our teeth and swish water from the SPIGOT around in our mouth. Clean and fresh! Water trickles out in a thin stream, or water gushes out like a flood. It all depends on the turn of the SPIGOT. We like to think of our brain as a SPIGOT. With a little imagination we turn on the SPIGOT of our thoughts. We see pictures flowing in our mind. We tap into our ideas. We brainstorm. We flood our mind with questions. Words trickle and flow and pour into our conversation and onto our papers. SPIGOT brings knowledge to ponder, to use, to question, and to store in the reservoir of our minds. Let’s notice the science behind the cloudy day or the daisy growing by the roadside. Let’s look at the geography and topography of the land as we walk. Let’s visit the history right around the corner. Let’s think. Who invented the red, green and yellow traffic lights? How does day follow night? Let’s see each other as companions sailing down the waters of life together. Let’s imagine each of us joining the big river from our own unique stream, each of us needing one another in some mysterious way on our journey. Let’s celebrate how we are alike, and how we are different. Let’s talk about it. Let’s write. Learning and remembering take a lot of our time. Focusing, practicing, imagining, reading, writing, drawing, acting, singing, dancing, playing a musical instrument, playing games, playing a sport—all make us healthy and well-rounded. We learn how to work with each other and how to value each other. We learn how to learn. SPIGOT is here to help you turn on your tap. Let’s flow with it. SPIGOT ~ http://www.spigotsciencemag.com 5 January/February 2008 Interesting Things about Water Water is all around us. We drink it. We wash in it. We use it for recreation. But what is water anyway? Water is made up of two of the most common elements on earthhydrogen and oxygen. When these elements combine in the right way, they form water. It takes two atoms of hydrogen mixed with one atom of oxygen to make a molecule of water. This is what it looks like: H O H Water Chuckle A teacher is talking to new twin students. Teacher: And what is your name? First twin: H A water molecule— two atoms of hydrogen (H) and one atom of oxygen (O). Teacher to the second twin: And what is your name? Second twin: H two. Teacher: Oh! I guess I’ll call you the water twins! The chemical symbol for water is H2O. Sometimes water is called dihydrogen monoxide. Di means two and mono means one. Water is two parts hydrogen and one part oxygen. You can have some fun with this. Next time you want a drink of water, ask for a glass of dihydrogen monoxide. Notice the look on the person’s face! Like a magnet Water molecules like each other and they stick together. This property of water is called cohesion. When water molecules stick together, they form a skin-like film that can hold a pin without sinking. This is called surface tension. You can see this happen when it rains. Water forms an outer edge of a puddle. Try spilling just a little water on the kitchen counter and see how the water holds together in a puddle. BUT what happens if you put your finger in the puddle and break the surface tension? Experiment! Fill a glass of water and carefully place a pin on the surface. Does it sink or float? Which property of water mentioned above does this show? SPIGOT ~ http://www.spigotsciencemag.com 6 January/February 2008 More Interesting Things about Water Capillary Action Keeps Water on the Move Have you ever noticed how water will go from a wet area to a dry area ever so slowly? If you spill water on the ground, it spreads out from the wet area to the dry dirt until it is absorbed by the ground. When you use a paper towel to mop up spilled water on the kitchen floor, the water moves from the floor to the towel as if it is being pulled in by something. A sponge works the same way. All these examples show capillary action, the movement of water upward or outward. Water is drawn from the ground to the veins in this leaf by capillary action. But what causes this movement? Just like water molecules like to stick together, they also like to stick to other things. This property of water is called adhesion. (Tape used for wrapping things and holding things together is called adhesive tape because it sticks to things.) When water ―sticks‖ to a tube, it moves upward, just the opposite of gravity. In a sponge, the water goes through the holes and is pulled upward by capillary action. In trees, water is drawn from the ground upward to nourish the leaves through capillary action. Water Riddle In our bodies, we have tiny tubes called capillaries that move nutrients and waste between our main What holds water but is blood vessels—our arteries and veins. filled with holes? The materials move through the capillaries by capillary action. ??? SPIGOT ~ http://www.spigotsciencemag.com Get a single branch of celery that is wilted. If it isn’t wilted, let it sit and dehydrate a few days before you try this. As it dehydrates, it loses water and gets wilted like a limp noodle. Put the wilted celery branch in a glass of water and let it sit overnight. The water will be drawn up into the veins of the celery by capillary action. The celery will become stronger and crisper. By adding water in this way, we hydrate it. You could also try putting some colored food dye in the water. What do you think will happen? Why? Answer: A sponge! Thanks to capillary action, water and other fluids move magically from one place to another. See Capillary Action 7 January/February 2008 Even More Interesting Things about Water What Are the States of Water? If someone asked you what the three states of water are, how would you answer them? If you said Michigan, California, and New Jersey, a loud buzzer would go off and tell you to guess again. Everything that exists is either liquid, solid, or gas. Water can be in all these states. TRY THIS You can see water in its three states. Try this with an adult standing by: Gas When water gets really hot, its molecules move fast. They become so light that they float up into the air and become vapor (or steam). Sometimes we see water vapor when the water is evaporating on a hot day. Liquid This is the slippery, oozy stuff that makes our hair wet and tastes great when we’re thirsty. As long as the temperature is between freezing (32 degrees Fahrenheit or 0 degrees Centigrade) and boiling (220 degrees Fahrenheit or 100 degrees Centigrade) water is liquid. Have you ever seen the steam rise off a hot road after a summer rain? This is water in its third state—gas. 1. Get an ice cube and put it in a pan. Describe what it looks like, then use a clock or watch to see how long it takes to change to water without any heat. 2. After the ice cube is melted, write a description of what you see. SAFETY ALERT Be very careful when heating water. Never leave a stove while it is on. 3. Heat the water and record how long it takes to turn to steam. 4. Write a paragraph or make a table to compare and contrast water as a liquid, solid, and gas. Solid When the temperature gets really cold, the molecules that make up water get really slow and they become solid. An ice cube is a good example of frozen water. It makes our drinks cold. Water is a Solvent Water as a liquid mixes really well with other substances. For example, if you add water colors to water, the water absorbs the paint and changes its color. Water is called a solvent because it can mix with things easily. SPIGOT ~ http://www.spigotsciencemag.com 8 January/February 2008 Messing around with Water We can learn about something just by playing around with it. Let’s mess around with water and make some observations about it. Activity 1 – What floats and what sinks? 1. Fill up a sink or a plastic wash tub about half full. 2. Get some common things that you find around the house such as a spoon, a plastic container, a pencil, a pin, or anything else you want to test. 3. Make a guess about whether the item will sink or float. Write your guess on a chart like this: Item My Guess Did it sink or float? Bowling ball (just kidding) Sink Sink Spoon etc. Activity 2 – How fast does water evaporate? 1. Get two saucers or small bowls and put the same amount of water in each one. 2. Put one inside a closet and one near a window that gets light. 3. From which bowl will the water evaporate first? 4. Make observations each day until the water has evaporated from both bowls. SPIGOT ~ http://www.spigotsciencemag.com 9 January/February 2008 Activity 3 – How are oil and water different? 1. Fill a glass about half full of water. 2. Write down what you think will happen when you add a tablespoon of cooking oil to the water. 3. Add the oil to the glass of water. 4. What happened? Write it down. 5. How did the result match your prediction? 6. Get a teaspoon and put it in the glass with the oil and water. 7. What happens when you take the spoon out of the glass? 8. Does oil stick to things? Does water? 9. Which is easier to get off the spoon — oil or water? Water, Water By Eileen Peluso Water, water everywhere And not a drop to drink. I’ve heard that rhyme since I was two And it always makes me think That I’m out at sea in a leaky boat With only a sieve to hold, And the sea is salty and the sun is hot. Then I remember what I’ve been told, ―You must drink eight glasses of water each day, Or your skin will dry up and you’ll wither away.‖ Now, that rhyme about water makes me think— I’M THIRSTY! So, if you don’t mind, Please get me a drink? SPIGOT ~ http://www.spigotsciencemag.com 10 January/February 2008 The Hydrologic Cycle Where did all the puddles go? Just yesterday it rained. There were puddles all over the place. Today the puddles are gone. What happened? It’s the hydrologic cycle at work. The Hydrologic Cycle, also known as the water cycle, happens all around us all the time. Rain falls. Precipitation. The sun warms up the ground. The ground warms up the air. Water on the ground turns into vapor and evaporates into the air. Evaporation. Cool clouds of tiny water droplets form. Condensation. The droplets join together and get larger. Gravity pulls the droplets down again to the earth. Rain falls. The puddles? That’s evaporation at work. Look up into the sky. That’s where the puddle water is now. It’s in a cloud waiting to rain again. Make your own water cycle 1. Put two teaspoons of water in a small plastic baggie. 2. Blow into the baggie filling it with air. 3. Seal it with tape and then tape the closed baggie to a window pane, hanging it by one of the top corners. Sun heats the land and the water evaporates. Water drops fall to the ground as precipitation. 4. Throughout the day look at the bag. 5. As the sun shines on it, what happens? 6. As the sun moves away from the window, what happens? Raining Cats and Dogs 7. Tap on the bag when larger droplets appear and you will make rain! Alicia: It’s raining cats and dogs outside. Marvin: How do you know? Can you name the processes taking place in the baggie? Alicia: I almost stepped on a poodle! SPIGOT ~ http://www.spigotsciencemag.com 11 January/February 2008 Where in the World Is Water? This drawing of the Earth appeared in Mitchell’s New Primary Geography in 1887. That’s over 120 years ago, but the map of the oceans is pretty accurate. Notice how much of the world is water. Notice also that the five oceans are really one connected ocean. Land and Water on Earth 1. On the surface of the Earth, is there more water or land? 2. How would you describe this difference to someone? 3. What do you think this means for the people living on Earth? This view of Earth from space shows the continent of Africa. Notice the large amount of water on the Earth. Antarctica is at the bottom of the picture. Compare this picture to the map above. NASA photo SPIGOT ~ http://www.spigotsciencemag.com 12 January/February 2008 Water By The Numbers Connecting Math and Science How Heavy is Water? We use a lot more water than we think. Check out this table: Water and other liquids are measured in a unit called fluid ounces. Fluid means liquid. Fluid ounces are abbreviated fl.oz. You can see this abbreviation written on water bottles and soda cans. HOW WE USE WATER Measurements can be really confusing since there are different measurement systems in different parts of the world. In the US, a fluid ounce is 1/16 of a pint. Eight fluid ounces equals a cup and two cups equals a pint. Hmm… let’s do the math on this: Water Use Taking a shower Toilet flushing 8 fl. oz. (1 cup) x 2 Watering the lawn 16 fl. oz. (2 cups or 1 pint) There is a saying that ―a pint’s a pound the whole world around.‖ Do you see how they came up with this saying? In dry measurements, 16 oz. equal a pound and in liquid measurement, 16 fl. oz. equal a pint. While these measurements are not exactly the same, they are pretty close. 25 5 to 7 10 per minute Washing hands 2 Washing clothes 25-40 We need to protect and save our water so we all have enough when we need it. Keep track of how much water you use everyday for a few days, then try to use less by not letting the water run when you brush your teeth or by taking a shorter shower. Be a conservationist— Save Water! Let’s see if we can figure out how much a gallon weighs by looking at the table below. How many pints in a quart? How many pints are in a gallon? 8 fl.oz = 1 cup 2 cups = 1 pint (16 fl. oz.) Investigation 2 pints = 1 quart 1. 2. 3. 4. 5. 6. 4 quarts = 1 gallon If each pint is a pound, how many pounds does one gallon weigh? Explain to someone else how you solved this water weight problem? SPIGOT ~ http://www.spigotsciencemag.com Gallons 13 Get an empty gallon milk jug. Fill it with water. Weigh it on a bathroom scale. Freeze it for a couple of days Weigh it again. Does frozen water weigh the same as water in a liquid state? January/February 2008 Water Falls, Land Moves A Dramatic Reading By Valeria B.Girandola This story of water is meant to be a dramatic reading. Assign verses and take turns reading verses separately then together like a chorus. You might need to practice a bit before you read it to an audience. The sun burns over the ocean. It beckons to the waving waters below. Water reaches upward, Surrendering to the sun’s warmth. Vapors rise. Water droplets disappear into thin air like popped bubbles. Fish and brine are left behind. Evaporation! High in the cold, blue sky, those droplets squeeze back from their nowhere. They freeze into a brilliant white cirrus of ice crystals. Condensation! A little lower, droplets bump and chase around in their atmosphere. They swirl into smoke and dance with dust particles. They collide, becoming bigger, heavier. They merge into clouds. These dense, gray stratus clouds hang low in the sky. Or perhaps, they form into massive, bulbous, cumulous clouds That stretch and rise like genies over the land To thunder and storm upon the earth. Gravity pulls. The earth below waits. Rain falls. Precipitation! Raindrops strike the ground like a spray of pebbles. Loose dirt moves a little, making room for falling rain. Somewhere, snow is beginning to cover mountain peaks. Sleet and hail start to pelt cold city streets. Meadows and fields fill with rippling puddles. SPIGOT ~ http://www.spigotsciencemag.com Lush jungles bend and sway under torrents of thunder-driven rain. Swamps soak up watery gifts. Oceans welcome back familiar wetness. Rain continues, drops upon drops, Merging, Joining, Flooding Over soaking land in a rush of washwater. Reluctantly, piles and particles of earth —gravel, sand, clay, and humus— Struggle and break free, Eroding into a watery ride. The surface of the earth is moving, changing forever. Other waters gather. Inside a mountain cave, a spring bubbles forth from the earth, A haunting from the past. 14 January/February 2008 This ancient rainstorm emerges and flows, Frothing and hurrying toward sunlight, Starving for air and brightness. Off the top of a whitened peak, melting snow glides and slides Into overflowing streams. Waters join together. Springs turn into rivulets carving tiny channels in the land. Loosened, earth’s ride becomes a roller coaster, Gushing into gullies, rushing into stream valleys. Streams join tributaries becoming a concerto of water. A great crescendo is building. The river! The river winds and bends and tumbles. It lifts and carries. It crashes and carves. Boulders and stones play leapfrog. The river is creating. The river strains against the earth that embraces it. Once brown, earth glows in layers of purple, orange and red. Canyons and cliffs, ledges and valleys emerge. The river flows. It collects itself. It calms and carries on. Finally, the river pours into the ocean. Its mouth empties a myriad of things Collected along its momentous voyage. There are old and new stories emerging As the journey ends and begins once again. The sun burns over the ocean. Things To Do 1. Re-read this poem and picture each event. See the sun rising, the clouds forming, the rain pouring down, etc. Retell the story in a few sentences—one sentence for each event. 2. Draw pictures or a chart to show the steps of the water cycle being carried out in this poem. 3. Record a reading of the poem on a digital voice recorder or computer. Add graphics from the Internet or clip art collections to create a multimedia slide show or podcast. Post it on a website or share it with someone else. Top Secret! Shhh….don’t tell too many people. On the Spigot Science Magazine web site there is a Teacher’s Guide. This has some background information to help people who work with kids. If you’re curious, go see what skills you will be learning. You can even learn the reading levels of the articles. Subscribe and you’ll find it on the Members page: http://www.spigotsciencemag.com/subscribe.html SPIGOT ~ http://www.spigotsciencemag.com 15 January/February 2008 Water Crossword Puzzle Across Down 2. 5. 8. 9. 10. 11. 16. 18. 20. 1. 2. 3. 4. to dry out, lose water when water turns from a vapor to a liquid a large floating piece of ice to add water to a body an ancient Roman waterway water when it is a gas when frozen water turns from a solid to a liquid when a mass of ice breaks away from a glacier it happens when water temperature is below 32 degrees another word for rain lacking water water turning to vapor or gas a kind of action that causes water to go upward in plants and trees one part of this gas is in every water molecule water vapor stored in the sky there are two parts of this gas in every water molecule covered with water the source of light energy for Earth the state of water when it is frozen a waterspout that is in the form of a beast a large body of ice moving slowly under its own weight water from the sky 6. 7. 9. 12. 13. 14. 15. 17. 19. 1 2 3 4 5 Hint 6 7 All the words in this puzzle are in this issue of Spigot. 8 9 10 11 12 13 14 16 15 17 18 19 See the answers on the next page. 20 EclipseCrossword.com SPIGOT ~ http://www.spigotsciencemag.com 16 January/February 2008 Drop-It 3. A four-letter word meaning what fire does. A Word Game Each word in this game comes from Water Falls, Land Moves, page 14. Take turns guessing the answers. Then make up your own. To ―drop it‖ means to take off the first letter to make a new word. Drop it and it means a large vase. 4. A four-letter word meaning the opposite of hot. Drop it and it means the opposite of young. 5. A five-letter word meaning something up in the sky. Drop it and it means the opposite of soft. 1. A four-letter word meaning to tumble down. 6. A six-letter word meaning something you stand on. Drop it and it joins two words. 9. A six-letter word describing a light. 10. A five-letter word meaning a hard smash. Drop it and it itches. Drop it and it is a shape of a ball. 2. A four-letter word meaning earth. Drop it and it means something you did on a bike. Drop it and it is the opposite of wrong. Example: cash dropped is ash. Drop it and it means everything. 8. A five-letter word meaning to wash away slowly. Using the same pattern, make up some words of your own to Drop-It. 7. A four-letter word meaning some form of precipitation. Drop it and it means the opposite of later. Water Crossword Puzzle/Drop-It Answers 7. snow, now 3. burn, urn 10.crash, rash 6. ground, round 2. land, and 9. bright, right 5. cloud, loud 1. fall, all Drop-It Answers 4. cold, old 8. erode, rode FREEZING—it happens when water temperature is below 32 degrees 20. CALVING—when a mass of ice breaks away from a glacier 18. MELTING—when frozen water turns from a solid to a liquid 16. VAPOR—water when it is a gas 11. AQUEDUCT—an ancient Roman waterway 10. HYDRATE—to add water to a body 9. ICEBERG—a large floating piece of ice 8. CONDENSATION—when water turns from a vapor to a liquid 5. DEHYDRATE—to dry out and lose water 2. RAIN—water from the sky 19. GLACIER—a large body of ice moving slowly under its own weight 17. GARGOYLE—a waterspout that is in the form of a beast 15. SOLID—the state of water when it is frozen 14. SUN—the source of light energy for Earth 13. WET—covered with water 12. HYDROGEN—two parts of this gas are in every water molecule 9. CLOUD—water vapor stored in the sky 7. OXYGEN—one part of this gas is in every water molecule 6. CAPILLARY— a kind of action that causes water to go upward in plants and trees 4. EVAPORATION— water turning to vapor or gas 3. DRY—lacking water 2. PRECIPITATION—another word for rain 1. DOWN ACROSS SPIGOT ~ http://www.spigotsciencemag.com 17 January/February 2008 Deserts of the World It’s not the sand or the heat Every land mass on our planet has a desert or two. Some are cold like the Polar Region deserts of Antarctica and the Arctic. Some are hot like the subtropical deserts Mojave and Sonoran in southwestern United States. Some are cool like the Atacama Desert that spreads along the coastal edges of Chile. But, it’s really not the heat or cold or sand that makes a desert. It’s lack of moisture and rainfall. In fact, the Arctic Desert and the Desert of Antarctica are the driest deserts of all because the moisture is locked up in ice. Desertification Slowly, so slowly the deserts are creeping, expanding. Grasslands on the edges of deserts become patchy stretches where erosion has cleared the land. Wind and water are taking away nutrientrich topsoil. Plants no longer grow on the land. Water no longer soaks into the ground. Desertification is taking place. This slow, natural process has been going on for centuries. Five thousand years ago the Sahara of Africa was covered with grasses and shrubs. Today this desert, the largest in the world at almost 3,500,000 square miles, is still expanding, as are others around the world. With large populations in Africa depending upon the land for farming and livestock, this can be devastating. What to do? Is this part of the natural process happening over a long period of time? Is it permanent? Should we, could we, try to stop or reverse desertification? These are questions scientists are thinking about. Some measures are already being tried around the world. Sand dunes are being protected with large rocks and some ―snow fences.‖ Areas are being covered with straw and then planted with shrubs and trees. In China, a new Green Wall, even longer than the Great Wall, is being planted with trees to protect the sandy lands. SPIGOT ~ http://www.spigotsciencemag.com Scientists are also looking at how deserts in Africa are used. Do people who live there rotate their crops ? Are the water resources used carefully? Is wood used for cooking and heating replaced? As answers to these questions are found, wise use of the best of earth science information will eventually give us ways to live in accordance with the processes of nature. What’s the difference between a desert and a dessert? One S is really dry. Two S’s are good to eat after dinner. Spelling makes a big difference, so check carefully what you write. 18 January/February 2008 A Gift From the Desert Desert Energy Enough sunlight shines on the Sonoran Desert in Arizona and California to provide electricity for all of America. Just one more thing is needed—enough mirrors! Europe also could get all of the electricity it needs from sun and mirrors in the Sahara Desert in Morocco. What do mirrors have to do with it? David Mills, a professor at the University of Sydney in Australia, has experimented with a field of almost flat mirrors. They reflect and focus rays from the sun back up onto tubes fixed above the mirrors. Water inside the tubes becomes hot and turns into steam. Steam spins the blades of a turbine. The turbine drives a generator producing electricity. When steam inside the tubes cools down, it turns back into water. This same water returns to be heated by the sun—another kind of water cycle. The renewable energy and low cost of this process hold great promise as a carbonfree source of power. The bright desert sun hits mirrors that reflect onto water pipes to make steam. Steam turns the turbines to make electricity. SPIGOT ~ http://www.spigotsciencemag.com 19 Electricity travels by wires to homes in the Southwest. January/February 2008 Frozen Water Only the shortwave length of blue is transmitted and scattered. The older glacier is blue! The ice at the base of some Canadian glaciers is 100,000 years old. bubbles inside. Blue icebergs are older and very dense. Greenishblack icebergs are old and may have calved from the bottom of a glacier. A Real Glacier! Are They Melting? Big old glaciers are so heavy that the bottom becomes deformed. The glacier cracks. It moves. Now it’s a true glacier. It is formed from snow, and it moves by its own weight. Today, tourists travel as far as 200 miles above the Arctic Circle to see glaciers calving into icebergs. Many of them are looking for places where longterm warming is beginning to show. In Illulissat, Greenland, tourists can find magnificent views of icebergs. Some people speculate that this is where the iceberg came from that sank the Titanic in 1912. It started here as a snowflake about 100,000 years ago; grew into a glacier, and then calved into a mega berg that waited for its historic meeting with the Titanic. Icebergs A Glacier Begins Up at the North Pole, down at the South Pole a snowflake falls. It falls on a cold spot and waits. Other snowflakes gather. They pile up and freeze together. More snow, more freezing—all through the winter. Summer comes. Only a small amount of melting happens. Winter comes. More snow, more freezing. A glacier is beginning. Each year more snow falls, less melting takes place. The glacier grows. After hundreds of years the large snow mass is heavy, dense. It is compacted into an ice mass. As the glacier moves and extends into water, the front end thins. This is called the termini of glaciers, and big chunks of ice break off and fall into the sea. The process is called calving. Icebergs are the calves of glaciers. White icebergs are young and have lots of air These are pictures of the Muir Glacier in Glacier Bay National Park. Notice how much the glacier has changed since 1941. What do you think is causing this change? The Colors of Glaciers The heavy frozen snow is no longer white. The tiny air bubbles captured inside the snow of a young glacier are becoming squeezed. The trapped air is forced out. Snow no longer reflects whiteness. The compacted, dense snow absorbs all the colors of the spectrum. SPIGOT ~ http://www.spigotsciencemag.com Photo credit Robert Rohde http:// www.globalwar mingart.com/ wiki/ 20 January/February 2008 A Gift From The North Pole Under the warming waters of the North Pole and the melting icebergs of the Arctic lies a fortune in oil. It seems that the climate change is bringing to life a long-believed legend. The fabled Northwest Passages and the riches that awaited the European explorers of long ago just might be true. In 1531, Jacques Cartier was sent by the king of France to find the Northwest Passage to the Pacific Ocean. He was seeking gold and other precious metals. Cartier sailed in vain up the eastern coast of the North American Continent. In the next century, the English explorer Captain James Cook looked for the mythical waterway linking Europe and Asia across the top of North America. He sailed up the western coast of North America and into the Bering Strait. Ice! He was stopped by hard, cold, impenetrable ice. Today, some of the Arctic areas are ice-free in the summer. Scientists are using giant air guns to map the ocean floor. The guns are pulled behind a research ship. When fired, the guns make a large bang that penetrates the lands under the ocean. Seismologists can then measure how sound travels. This locates pockets of fossil fuel, oil that is trapped under the rocks. The legendary riches that the explorers searched for might just be a pot of gold at the end of the Northwest Passage rainbow--400 billion barrels of oil. This could be a larger find than almost anywhere else on earth. Something to Discuss 1. Tapping into this huge pool of oil in the Arctic could provide a lot more oil for the world to use. Is this a good or bad thing? List some pros and cons of finding new oil. 2. Taking oil from the Arctic could affect the environment. What do you think we should do to protect the Arctic from oil spills and other problems that oil drilling might cause. In 1903, Roald Amundsen of Norway sailed with his crew of six through the waterway at the top of the world. It took three years of exploring and navigating his way through ice-filled waters in his fishing boat Gjoa. On August 6, 1905, the crew saw a ship heading straight for them. Amundsen knew they were through the passage! SPIGOT ~ http://www.spigotsciencemag.com 3. Would you vote for or against further oil development in the Arctic? Why? 21 January/February 2008 Weird and Wonderful Waterspouts By Rebecca Creswell The itsy bitsy spider went up the water spout. Down came the rain and washed the spider out. Out came the sun and dried up all the rain. And the itsy bitsy spider went up the spout again. -Anonymous Do you remember this poem about the stubborn Gargoyle at Westminster Abbey Dallas. Jones little arachnid that kept climbing up the waterspout even though the rain washed him back down over and Gutters collect rain as it runs down the sides of the roof. The water from the rain gutters then travels to a over again? Did you ever wonder about that waterspout at the corner of the roof. The waterspout waterspout? What was its purpose? Was it for has an opening that allows the water to flow down to decoration or was it just a climbing challenge for the ground. The gutters and the waterspout work determined little spiders? together to take water away from the building. This A waterspout is a pipe that allows water to drain prevents water from leaking into the building and from the gutters on houses and other buildings. damaging the roof or walls. Today’s waterspouts are rather plain looking. However, if the itsy bitsy spider had been around about 800 years ago during the Middle Ages, he might have decided not to climb back up the waterspouts on some buildings in Europe! Those waterspouts were stone carvings of scary creatures called gargoyles. They sat on the highest corners of a building, their long necks stretched far out from the edge of the rooftops. The rain water fell down the building’s roof and passed through the gargoyles’ necks. The water then spilled out of the gargoyles’ open mouths down to the ground below. Gargoyles in the Middle Ages were most frequently seen on Christian churches called cathedrals. One of the most famous of these was the SPIGOT ~ http://www.spigotsciencemag.com 22 January/February 2008 the water from the roof to the ground, were invented. Gargoyles were no longer needed as waterspouts. Still, many builders kept using gargoyles on their buildings, either as decoration or as ―protection.‖ Today, we can find gargoyles on many buildings in cities in the United States. Princeton University in Princeton, New Jersey, the University of Pennsylvania in Philadelphia, Pennsylvania, and Duke University in Durham, North Carolina, all have buildings that are Notice the trough on top of this gargoyle to hold the water before ―guarded‖ by gargoyles. The National Cathedral in it leaves the creature’s mouth. Washington, D.C., has 112 gargoyles! Some of them are working waterspout gargoyles and many of them Cathedral of Notre Dame in Paris, France. We do not are modern ―decorative‖ gargoyles. These include know why the stone carvers made the gargoyles so animal gargoyles like a rattlesnake and a French strange and scary looking, but there are some possible poodle, fantasy gargoyles like a dragon and a explanations. unicorn, and ―fun‖ gargoyles like a computer and Most of the people who lived during the Middle Darth Vader! Ages did not go to school. They were very So, the next time it’s raining and you find yourself superstitious and were afraid of things they did not thinking about that itsy bitsy spider being washed understand, such as earthquakes, thunder, and down the waterspout, remember all those weird and lightning. Many of the people were pagans, which wonderful waterspout creations of the past and try meant they worshipped nature and believed in more looking up. You might be surprised by what is looking than one god. Placing gargoyles that looked like a back down at you! dragon or a scary beast as the waterspout on the cathedral may have been a carryover from earlier pagan beliefs. The gargoyles may also have made the people inside the cathedral feel safe and protected from demons and evil spirits! Later in the Middle Ages the gargoyles became less frightening, but the way they were made stayed the same. A sculptor created the gargoyle using a clay model. Then a stone carver would carve a copy of the model using tools such as a mallet, a chisel, files, and a measuring device called a caliper. The mouth, eyes, and ears of the gargoyle were made much larger so they could be seen from the ground below. The finished gargoyle would then be pulled by many workers to its home at the top of the cathedral. In the 1500’s lead drainpipes, long pipes that took SPIGOT ~ http://www.spigotsciencemag.com 23 January/February 2008 This gargoyle is on the British Naval Museum. Photo credit: www.pdphoto.org Go on a Gargoyle Hunt! Rosenwald Hall, 1101 E. 58th St., Chicago, IL (as well as other buildings on campus) Gargoyles can be in many places around the world New York, New York – The Cathedral of St. John the on churches, museums, office buildings, and even Divine on Amsterdam Ave., many buildings on W. private homes. 110th St, and the Chrysler Building at the corner of Some of the cities in the United States that have 42nd St. and Lexington Ave., home to stainless steel buildings with gargoyles are listed below. If you travel gargoyles! to any of these places, have fun looking for the Philadelphia, Pennsylvania – The Fisher Fine Arts gargoyles who are looking at you from their perches in Library at the University of Pennsylvania, 220 South the sky! St. and the First Presbyterian Church of Philadelphia, Happy gargoyle hunting! 201 South 21st St. Learn more about Asheville, North Carolina – The Biltmore Estate, 1 Approach Rd. Asheville, NC. Gargoyles Baltimore, Maryland – The Bank of America Building (formerly the Baltimore Trust Building), 10 Light St., Baltimore, MD. There are some great gargoyle websites on the Internet. Find them at our site. Boston, Massachusetts – Trinity Church in Copley Square, 206 Clarendon St., Boston, MA. http://www.spigotsciencemag.com/links.html Chicago, Illinois – The University of Chicago, SPIGOT ~ http://www.spigotsciencemag.com 24 January/February 2008 An Ancient Water System People need water to live. We need a fresh supply of water for drinking, bathing, and cooking. Builders of ancient Rome solved this problem by using gravity. They built a system of aqueducts that brought fresh spring water from high in the mountains down into the city for the one million people that lived there. Eleven aqueducts were built between 312 BC to AD 226. Some are still bringing water to the city today. The system has five main parts. Covered trenches start the water from the springs. Tunnels take it through mountains. Then, in sealed pipes, water flows down a mountainside and is pushed up the other side of the valley and out at the same level it enters. To keep the downward flow constant, ducts are built above ground on walls. At some places where the flow must be kept higher than five feet, bridges are built with a series of arches. These arcades are one of the grandest monuments of the Roman Empire. They are graceful, majestic structures, part of an engineering marvel that visitors to Rome today can enjoy. The Fountain of Trevi with its splashing, cold, mountain water is a major site for tourists. It is said if you throw a coin into the fountain, you will return to Rome someday. Few people realize that the water in that fountain comes from the mountains through the ancient Roman aqueducts. Waterspout There are no gargoyles on this type of waterspout. This spout is like a tornado in the water. Strong winds over water swirl the water upward, just the opposite of the waterspout that the itsy, bitsy spider climbed up. Investigate How does water get to your house? It probably doesn’t come from an aqueduct. It might come from a well in your yard or from a reservoir miles away from your city. Ask some questions and do some research to find the source of your water. SPIGOT ~ http://www.spigotsciencemag.com 25 January/February 2008 Here’s to Your Health How much water do we need each day? Some nutritionists, people who help us know which foods and drinks we need, tell us to drink eight 8- ounce glasses a day. That’s 64 fluid ounces or one-half gallon. Others say we need to drink one ounce of water for half the number of pounds we weigh So if you weigh 100 pounds, you should drink at least 50 fluid ounces or over six 8 ounce glasses of water per day. A much easier way to make sure you are getting enough water is to drink a glass of water with each meal in addition to whatever else you drink, AND drink a glass between meals. Getting enough water helps us prevent dehydration. Thirsty? Do you know that if you are thirsty, you are already dehydrating? Drink water often! Watering our Bodies About how much of your body is water? 1/4? 1/2? 3/4? If you guessed 3/4, you are correct! Our bodies are mostly made of water! Just like the water cycle that affects our weather, we have a water system in our bodies that must work right for us to survive. We get the water into our system by drinking it and eating things like vegetables and fruit that are also mostly made of water. The water in our body is used to make blood that nourishes our cells. Our kidneys help to filter out the minerals that our body no longer needs. We eliminate them from our bodies in the form of urine. We also eliminate ―used‖ water when we sweat. If we don’t have enough water, we become dehydrated and we have less energy to do things. Next time you are feeling tired after playing, try drinking a glass of water. It will perk you right up! Why? Because adding water to your body replaces the water that is missing in your cells. It’s like giving a car that’s out of fuel a new tank of gas. When our body has the water in needs, it becomes hydrated and it works much better. Do you know… Soda or pop is NOT a good replacement for water because it has lots of sugar and calories in it. Plain old fashioned water is much better for your body. SPIGOT ~ http://www.spigotsciencemag.com 26 January/February 2008 How Much Water Do You Drink? Fill in the table below to keep track of how much water you drink each day for one week. Based on the table decide whether or not you are drinking enough water. Try drinking a little bit more the following week until you get up to the amount that is right for you. Directions: For each day, check off the box for each glass of water you drink. A glass should be 8 fl.oz. or 1 cup. If you drink more than five drinks, check all the extra drinks in the Drink 5 box. Check the box for each Drink 1 Drink 2 Drink 3 glass of water you drink. Drink 4 Drink 5 Total Sunday Monday Tuesday Wednesday Thursday Friday Saturday AMAZING FACT So you think you need a lot of water every day? Check this out… Growing enough food for one adult for one day takes 1700 gallons of water. That’s enough water to fill over 40 bathtubs! SPIGOT ~ http://www.spigotsciencemag.com 27 January/February 2008 Making Music with Water Do you know that people have been making musical sounds using water for centuries? There are water organs, water drums, and even water gongs. Using different amounts of water in special instruments, you can make all sounds from the highest to the lowest pitches. You can make music with drinking glasses, too! Try this: Line up 8 water glasses. Put a little water in the first one. Put a little more in the second one. Keep putting a little more in each glass. The last glass should be filled almost to the top. Tap on the side of each glass with a spoon. Ding! Do you hear a different musical sound from each glass? Now make a whole scale: do, re, mi, fa, so, la, ti, do. To tune the glasses, just take a little water out or put a little more water in. When they sound just right, try playing Twinkle, Twinkle little Star. Try playing some other songs that you know. Who knows, when you get really good at playing your water glasses, you might end up playing a water glass concerto like the man from Budapest, Hungary below. Be sure to subscribe to Spigot Science Magazine. When you do, we’ll send you an email to tell you when our next issue is ready for you. Subscribe at: Hear a water glass concert and an interview with a Russian man who plays the theme from Harry Potter. Look for similar concerts on the same site. http://www.spigotsciencemag.com http://www.youtube.com/watch?v=ik4rl5b3THE SPIGOT ~ http://www.spigotsciencemag.com 28 January/February 2008 Water Pollution - What Can We Do? You can help solve A Really Big Problem! We hear about pollution all the time: oil spills, sewer plant problems, poisons killing fish, drinking water needing to be boiled. Our precious water keeps getting polluted. We need all the clean water we can get to survive. What can we do to end this problem? Big Problems Small Steps Imagine that you are on a committee to find ways to provide clean water for people all over the world. What a big challenge! Here is a way to help figure out some answers:. 1. Write down what the problem is and why you think it is happening. 2. Make a list of questions you have about the problem. 3. Pick the most important question to investigate. 4. Use books, the Internet, interviews or other sources to try to find the answer to your question. 5. Decide what you think is one solution to the problem. 6. Using your favorite computer program or other methods, make a presentation about how you can solve at least part of the problem. Big problems seem to have impossible solutions. If we break the problem down into small parts, we can often do our part to solve the big problem. Solving problems is much easier if we have a STRATEGY, a plan of attack for the problem. In the water pollution problem the strategy is to: find the problem, ask questions, do research, and choose a solution. Having a STRATEGY What can we do to prevent things like this from happening? SPIGOT ~ http://www.spigotsciencemag.com 29 really works! January/February 2008 The Seven Underwater Wonders of the World A Mini Research Project The Seven Underwater Wonders of the World are places of special beauty and value all around the globe. Palau is the world’s youngest and smallest nation. It is an island that lies 500 miles east of the Philippines. The Belize Barrier Reef is in Central America between Guatemala and Mexico. The Galapagos Islands are in the Pacific Ocean 600 miles west of Ecuador. The Northern Red Sea is in Eritrea, a country in Northern East Africa. Lake Baikal is the largest, deepest and oldest fresh water lake on Earth. It is known as the ―Blue Eye of Siberia‖ in Russia. The Great Barrier Reef consists of more than 2,800 coral reefs off the northeastern coast of Australia. The Deep Sea Vents are underwater volcanoes found in some of the deepest places in the ocean. They are far beyond what a submarine or diver can reach. The first one ever seen by a human was discovered in 1977. It is on the East Pacific Rise near the Pacific Ocean’s Galapagos Islands. Information about all these wonders can be found at the following website: http://www.wonderclub.com/ WorldWonders/UnderWaterWonders.html. This site is also found at the SPIGOT website: http:// www.spigotsciencemag.com/links.html. If you are working alone, pick one site, read more about it, and decide what makes it special. Use your favorite way of presenting information (writing, drawing, singing, dancing, video, etc.) and share the main features of your underwater wonder with others. If you are working in a classroom, work with a group and share the research responsibilities. Use your favorite way of presenting information (writing, drawing, singing, dancing, video, etc.) and share the main features of your underwater wonder with others. Some triggers to get you thinking: 1.What is so special about your underwater wonder? 2.Where is it? Use a map online to find it. UNDERWATER, in oceans, lakes, rivers, streams and ponds! 3.What are its most interesting features? 4.What does it look like? 5.Why would you want to visit this underwater wonder? SPIGOT ~ http://www.spigotsciencemag.com Guess where 95% (that’s 95 out of 100) of all species (types of plants and animals) live? 30 National Geographic January/February 2008 Good Books about WaterBy Dr. Patricia Richwine SPIGOT is an Amazon Affiliate. You can order the featured books below and others directly from Amazon through the SPIGOT website: http://www.spigotsciencemag.com/books.html A Drop of Water by Gordon Morrison, 2006, Houghton Mifflin (NY). A Drop of Water: A Book of Science and Wonder by Walter Wick, 1997, Scholastic (NY). Do you like to play ―I Spy‖? In this book about the water cycle, you can search for over 40 plants and animals. You'll love Walter Wick's stop-action photography. It lets you see a single drop of water better than if you were looking through You’ll follow a single drop of water down a stream and through the countryside. You’ll learn about caring for the environment, too. If you can’t find all the plants and animals, there’s a great, illustrated glossary in the back of the book to help you. See how many plants and animals you know. a magnifying glass. You can also see actual snowflakes and even molecules in motion. And, if you like to do your own experiments, this book is for you. It’s full of simple experiments that can be done with supplies you’ll find in your own kitchen. Get ready to start your own scientific investigation of water. Internet Links for Water Activities Go to the Internet to find many more activities about water. You will find good links here and on our website, http://www.spigotsciencemag.com/links.html http://ga.water.usgs.gov/edu/index.html This site by the US Geological Survey offers a lot of information about water and its properties. Called Water Science for Schools, it is a great site for basic information. http://ga.water.usgs.gov/edu/earthhowmuch.html A table on this site shows where water is on the earth and how much of it there is. http://www.blurtit.com Search for water on this site and you will find many activities and questions and answers. SPIGOT ~ http://www.spigotsciencemag.com 31 January/February 2008 Our next issue Trees March/April 2008 2008 Spigot Themes In our next issue, Trees: March/April Trees Anatomy of a Tree May/June The Earth in the Universe Measuring trees September /October Simple Machines Arbor Day November/December Patterns and Relationships Leaves changing colors A Miracle Tree Interview with a tree expert Get a FREE copy of Spigot whenever it’s published….AND, we’ll even send you a reminder to download it. All you need to do is SUBSCRIBE at www.spigotsciencemag.com SPIGOT ~ http://www.spigotsciencemag.com 32 January/February 2008
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