Unformatted text preview: Comprehension Main Idea and Summary Main Idea and Summary Independent Practice Read the passage and answer the following questions. Sand is made when rocks break into smaller pieces. Over a long period of time,
wind, frost, and rain work against mountain cliffs and break off pieces of rock
which fall down the mountainside. As the rock bounces down, it breaks off other
pieces of rock it hits, and also breaks into smaller pieces itself. The water of rivers
and oceans rush against rocks, breaking them into smaller and smaller pieces.
The heavy ice of glaciers scrapes and grinds the rocks it moves along. The ice
carries the sand it has made and dumps it in other places. All over the world, the
ocean waves tear at the rocks along the shore, wearing them down until ﬁnally
the rocks are so small they become what we call sand. 4. What is this story mainly about? 5. Which sentence tells what this story is mostly about?
A Wind, frost, and rain B Making sand A Ocean waves turn rocks to sand.
C Journey of a rock B Rocks break into pieces.
D Beaches around the world C The glacier makes sand as it
grinds along the rocks.
D Sand is made when rocks break into smaller pieces. 6. Look at this diagram of information from the passage. Which idea belongs in the empty box?
A Things found on beaches B Forms of water C Forces that form sand D Places where sand is found 41 ©2003 GF Educators, Inc. Fifth Reading ...
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- Fall '09