LESSON 3: ICE

COMPREHENSION: 

1. What is the main idea of this passage?

a. Ice gets smaller when it melts.
b. Water freezes when it is in a freezer.
c. Water expands when it freezes.

2. What do water particles do when water becomes ice?

a. move apart 
b. move quickly 
c. move close together

3. The volume of ice is when it was water.

a. the same as 
b. bigger than 
c. smaller than

4. In the experiment, why was the ice higher than the line on the bottle?

a. The bottle was small. 
b. The ice was hard. 
c. The water expanded
.
5. What happens when water freezes inside the holes of rocks?

a. The rocks get harder. 
b. The ice gets smaller. 
c. The holes get bigger.

Complete the summary with the words from the box.

expand            holes            bigger              ice          particles 

                          freeze                        break

Water changes from a liquid to a solid when it becomes ICE. 

When water freezes, its PARTICLES move farther apart. 

This makes the water EXPAND.

Expanding water can cause problems. 

In winter, water pipes can FREEZE and break. 

This makes a big mess! 

In nature, water gets into the _HOLES of rocks. 

The holes get  BIGGER when the water freezes. 

This makes the rocks BREAK  apart.


                                                                                        GRADE:A+