Name: ___________________________________________________ Date: ______________ Period: _______
NASA’s Hydrologic Cycle Internet Lesson
Directions: Visit the web site below and answer the following questions.
http://www.teachersdomain.org/resource/ess05.sci.ess.watcyc.hydrocycle/
Click “VIEW”
1) List three examples of surface water.
a.
_________________________
b. _________________________
c. _________________________
2) After precipitation falls to the surface, it will do 1 of 2 things. List them both.
a.
_____________________________________________________________________________________________
b.
_____________________________________________________________________________________________
3) List the 5 steps of the water cycle.
a.
____________________________________
d.
____________________________________
b.
____________________________________
e.
____________________________________
c.
____________________________________
Click “NEXT: CONDENSATION”
4) Define CONDENSATION. ______________________________________________________________________________
____________________________________________________________________________________________________
5) Which type of air tends to rise? ___________________________________________________________________________
6) Explain why a cold soda can will appear to “sweat”. __________________________________________________________
____________________________________________________________________________________________________
Click “NEXT: PRECIPITATION”
7) Define PRECIPITATION. ______________________________________________________________________________
____________________________________________________________________________________________________
8) When does precipitation begin? __________________________________________________________________________
____________________________________________________________________________________________________
Click “NEXT: INFILTRATION”
9) Define INFILTRATION. _______________________________________________________________________________
____________________________________________________________________________________________________
10) What are four reasons that will determine how much water infiltrates the soil?
a.
_________________________________________________________________________________________________
b.
_________________________________________________________________________________________________
c.
_________________________________________________________________________________________________
d.
_________________________________________________________________________________________________
11) What happens to the water that does not infiltrate the soil? _____________________________________________________
____________________________________________________________________________________________________
Click “NEXT: RUNOFF”
12) a. Define RUNOFF.
b. What are two sources of runoff?
a.
_________________________________________________________________________________________________
b.
_________________________________________________________________________________________________
13) Where do rivers and streams usually lead? __________________________________________________________________
Click “NEXT: TRANSPIRATION”
14) Define EVAPOTRANSPIRATION. _______________________________________________________________________
____________________________________________________________________________________________________
15) What is evaporation?
____________________________________________________________________________________________________
16) What is transpiration?
____________________________________________________________________________________________________
17) How does transpiration make water cleaner? ________________________________________________________________
____________________________________________________________________________________________________
On Your Own
18) Review Practice Quiz
a.
Water enters the ground by what process? ___________________________________________________________
b.
When condensation occurs, water changes from a_________________________ to a ________________________.
c.
Water droplets form on the outside of a cold soda can because __________________________________________.
d.
Plants lose water through their leaves by which process? _______________________________________________.
e.
Warm, humid air will rise by what process? __________________________________________________________
f.
Lakes, streams, and oceans are examples of _________________________________________________________.
19) From what you learned, fill in the steps with the correct stages of the water cycle. Use the following choices.
Choices: Transpiration, Condensation, Evaporation, Runoff, Infiltration, and Precipitation
Step 1: ________________
Step 2: ________________
Step 3: ________________
Step 4: ________________
Step 5: ________________
Step 6: ________________
Name: _________________________________________________ Date: ______________ Period: ______
Carbon Cycle Internet Lesson
Answer each question by visiting the website below.
http://bcs.whfreeman.com/thelifewire/content/chp58/5802002.html
Introduction
1. What two things make up an ecosystem?
a. _______________________________
b. _______________________________
2. What do ecosystems need a constant supply of? __________________________________________
3. In what form is most energy lost as? ____________________________________________________
4. Define BIOGEOCHEMICAL CYCLE. _________________________________________________
_________________________________________________________________________________
5. What are objects that give off substances called? __________________________________________
6. What are objects that take in substances called? ___________________________________________
Click “Animation” and the click “Step-Through”
(1 of 9)
7. Name 4 objects that cycle Carbon?
a. _______________________________
c. _______________________________
b. _______________________________
d. _______________________________
8. How do humans release carbon into the atmosphere? ______________________________________
Click PLAY and then click CONTINUE
(2 of 9)
9. Which two processes release CO2?
a. _______________________________
b. _______________________________
10. How is CO2 taken into plants? ________________________________________________________
Click PLAY and then click CONTINUE
(3 of 9)
11. Why are oceans considered a carbon sink? _______________________________________________
Click PLAY and then click CONTINUE
(4 of 9)
12. Which organisms perform photosynthesis in the oceans? ___________________________________
13. Carbon exits the food web by which two processes?
a. _______________________________
b. _______________________________
Click PLAY and then click CONTINUE
(5 of 9)
14. Where is the most abundant amount of carbon found near earth’s surface? _____________________
Click PLAY and then click CONTINUE
(6 of 9)
15. In the oceans, when does carbon exit the carbon cycle? _____________________________________
Click PLAY and then click CONTINUE
(7 of 9)
16. Name the types of fossil fuels.
a. _______________________________
c. _______________________________
b. _______________________________
d. _______________________________
Click PLAY and then click CONTINUE
(8 of 9)
17. Forest fires are a type of ___________________________.
Click PLAY and then click CONTINUE
(9 of 9)
18. Which is greater?
a. The amount of carbon entering the atmosphere.
b. The amount of carbon exiting the atmosphere.
19. Why are the consequences of this imbalance?
_________________________________________________________________________________
Click CONCLUSION
20. Read this conclusion and write don 5 main idea points that you feel are important.
a. ___________________________________________________________________________
b. ___________________________________________________________________________
c. ___________________________________________________________________________
d. ___________________________________________________________________________
e. ___________________________________________________________________________
Click QUIZ
Quiz #1: Which of the following carbon reservoirs is the largest?
a. Sand and detritus
b. Terrestrial organisms
c. The atmosphere
d. Ocean waters
Quiz #2: Which organisms are considered the foundation of the oceanic food web by taking in carbon
dioxide?
a. Fish
b. Phytoplankton
c. Bacteria
Quiz #3: Overall, more CO2 enters the atmosphere than returns to Earth.
a. True
b. False
Name: __________________________________________________ Date: _____________ Period: ______
Nitrogen Cycle Internet Lesson
Directions: Answer the following questions by visiting the website below
http://bcs.whfreeman.com/thelifewire/content/chp58/5802004.html
Introduction
1. Name 3 molecules that require nitrogen.
a. ____________________
b. ____________________
c. ____________________
2. Where is most nitrogen on Earth found? ________________________________________________
3. What percentage of the atmosphere is nitrogen? __________________________________________
4. Which type of organisms can use nitrogen in the atmosphere? _______________________________
Click ANIMATION and then click STEP-THROUGH
1 of 5
5. Which type of bond holds N2 together? _________________________________________________
Click PLAY
Click Continue
2 of 5
6. What are bacteria called that use N2? ___________________________________________________
7. First, N2 is converted in ___________________.
8. Then, NH4 is converted into ___________ and ___________.
9. Which organisms can use NO2 and NO3? _______________________________________________
10. How do animals obtain their nitrogen? __________________________________________________
Click PLAY
Click CONTINUE
3 of 5
11. In which products do humans convert N2 into NH4 and NO3? _______________________________
12. Where does runoff cause nitrogen to accumulate? _________________________________________
Click PLAY
Click CONTINUE
4 of 5
13. Which three molecules are often created from the remains of dead organisms?
a. ____________________
b. ____________________
c. ____________________
14. What is denitrification?
_________________________________________________________________________________
Click PLAY
Click CONTINUE
5 of 5
15. What percent of useable nitrogen (NH4, NO2, and NO3) is used by life? _______________________
Click CONCLUSION
16. Specifically, what do nitrogen fixers do? ________________________________________________
17. Which organisms first use NH4 and NO3? _______________________________________________
18. Why is an abundant amount of nitrogen from humans bad? _________________________________
_________________________________________________________________________________
Click QUIZ
19. What kind of organism converts atmospheric nitrogen into a form that other organisms can use?
a. A denitrifier
b. A nitrogen fixer
c. A nitrifier
20. Which type of molecule contains nitrogen?
a. Proteins
b. Carbohydrates
c. Lipids
21. Which process refers to the conversion of nitrates to nitrogen gas?
a. Nitrification
b. Nitrogen fixation
c. Denitrification