Page 79 - science

How we hear sounds

In this lesson you will discover that we use our
ears to hear sounds. Key words

ear
hear
Sound travels from the place where it is made,

into our ears.

We hear when sound travels into the ear.

We have two ears to help us hear sounds all
around us.

Can you hear with only one ear?

1 Sit quietly and close your eyes.

2 Put your hand over one ear. Listen.

3 Now take your hand away from
your ear. Listen again. Talk about

4 Cover your other ear and listen. how we hear
things.

Can you hear the same Point to the part
sounds? Are there some of the body that

sounds you can hear better we use to hear
than others, such as quieter things. Say the

sounds or louder sounds? name out loud.

5 Predict what would happen if you covered

both of your ears.

Sit in a safe place and
try this. Are two ears
better than one?
Did you predict correctly?

80
■ For more activities, go to Workbook 1 page 80.