4th Grade Homework #16
Student Name:
1) What is a
What Glaciers Leave Behind
possible synonym
for erratic ?
Cross-Curricular Focus: Earth Science
Glaciers are like huge mountains of moving ice. Many years ago, the movement of glaciers
across our landscapes slowly made some changes to Earth’s surface. Ice is heavy, so when it
moves it can do some damage to the ground that it is moving over. It can push rocks and soil in
front of it as it moves, or it can drag them along. Since ice gradually melts with time, the glaciers
end up leaving behind things that they have pushed or pulled during their travels.
In many places on Earth, there hasn’t been any ice for many years, but there is evidence
that it was once there. A moraine is a rut or indentation in the ground that is lined with small
rocks and debris. It was formed by a slow-moving glacier that scraped the ground as it moved,
and dropped small rocks as it melted. An erratic is a large boulder left behind after a glacier has
melted. A huge stone boulder can also be called a monolith. A cirque is an area that is rounded
out like a bowl or sink tub.
Sometimes the results of the landscape transformation produced by glaciers can be
amazingly scenic and beautiful. Our national parks often are home to many of these natural
wonders. When land was being set aside to preserve and protect it in its natural condition,
areas with amazingly sculptured landscapes were obvious choices. By including them in national
parks, our government officials protected them for future generations to see. California’s
Yosemite (Yo-Sem-it-tee) Valley is one of the best examples of how glaciers can transform a
landscape. Nearly all of the lakes found in the Yosemite Valley were formed by glaciers that
melted after cirques had been formed by the slow-moving giants. As the ice melted, the water
settled in the bowl that had been formed rather than running off across the land. There are also
many examples of erratics and moraines scattered throughout the Yosemite National Park.
Visitors come to Yosemite and other national parks by the thousands to see what glaciers have
left behind, and to wonder how leftovers can possibly be so picturesque.
______________
______________
______________
2) Based on the
content of the
passage, what do
you think the word
picturesque means
in the last line of the
passage?
______________
______________
______________
______________
______________
______________
Grammar Practice: Antonyms
Circle the word that means the opposite, or nearly the opposite, as the underlined word in each sentence.
1) The students thought the math test was easy.
colorful
simple
funny
difficult
2) After one cycle in the dryer, the clothes were dry.
metal
damp
delicious
dirty
3) The noise from the radio was so loud that the car’s windows were shaking.
quiet
obnoxious
silly
yellow
4) The new dessert was the most delicious thing I had ever eaten!
tasty
hot
disgusting
liquid
4th Grade Homework #16 Due: 12/12/16
Math: Current Skills Practice.
453 ÷ 3
Use Base-10 Blocks to help you divide.
First, draw 453 with base-10 blocks:
Next, share the blocks evenly
with the three groups:
The answer is the amount in ONE of the circles:____________
Math Review : Use an area model
to multiply.
Multiplication Facts/Fact Families
Daily Practice – 15 minutes
Mon.
49
x6
Tues.
Weds.
Thurs.
Home Reading Log:
Read 30 min. daily.
Mon.
Tues.
Weds.
Thurs.
Book Title
Chapter(s)
Parent Initials