Exercises of Activity Book

1  Complete and match. Listen and check

floats   metal   sinks   wood   peel   orange

1. The ruler is made of wood.

d. if we put it in water, It floats.

2. The coin is made of metal.

c. if we put it in water, It sinks.

3. This is an orange.  

b. if we put it in water, It floats.

4. Let’s peel an orange.

a. if we put it in water, It sinks.

2  Write

1. you / in / ruler / if / put / a / it / water / flots

If you put a ruler in water, it floats.

2. a / water / sinks / it / coin / you / in / put / if

If you put a coin in water, it sinks.

3. you / in / put / orange / an / water / floats / if / it

If you put an orange in water, it floats.

3  Read and write

1. What happens if you put glass in water?

If you put a glass in water, it sinks.

2. What happens if you put paper in water?

If you put a paper in water, it floats.

3. What happens if you put wood in water?

If you put wood in water, it floats.

4. What happens if you put metal in water?

If you put a metal in water, it sinks.

5. What happens if you put plastic in water?

If you put plastic in water, it floats.

4  Listen, write and say

1. What happens if you put the bottle in water?

It floats.

2. What happens if you put the coin in water?

It sinks.

3. What happens if you put the plastic boat in water?

It floats.

4. What happens if you put the paper boat in water?

It floats.

5. What happens if you put the jug in water?

It sinks.

5  Read and order the pictures

1. First, put some water into the glass.

c

2. Put in lots of salt (about 6 large spoons).

e

3. Mix the salt into the water.

a

4. Put more water into the glass carefully. Don’t mix it.

b

5. Then, put the egg into the water slowly.

d

6  Read and circle Yes or No

1. If you put an egg in normal water, it floats.

No. It sinks.

2. In the experiment you put salt into a glass of water.

Yes.

3. Put the egg into the glass of water first.

No. put water into the glass first.

4. The egg sinks in salt water.

No. It floats.

5. The salt water is heavier than normal water.

Yes.

7  Listen, order, write and say

1. slowly / into / egg / put / the / water / the

Put the egg into the water slowly.

2. glass / the / gently / put / into / water / the

Put the water into the glass gently.

3. quietly / please / speak

Please speak quietly.

4. Orange / carefully / the / peel

Peel the orange carefully.

8  Read and complete

This is my (1) experiment. What happens if you put a glass of water in the sun?

• Put some (2) water into a glass.
• Put the glass in the sun.
• Put some white (3) paper under the glass.

Watch what happens.

If you put a glass of (4) water in the sun, you see lots of different (5) colours.

9  lesten and write

Audioscript and answers

This is my experiment. What happens if you put oil and water into a glass?

Put some water into a glass.

Put some olive oil into the glass.

Watch what happens.

If you put oil and water into a glass, the oil floats!