Page 74 - science

Some sounds can be loud, for example, a siren. Some

sounds can be quiet, for example, a butterfly flying.

Describing sounds in school
Be a
Go on a listening walk around the school. scientist

Scientists can
1 Predict what you think the loudest sound measure and

will be.
record sounds
2 Predict what you think the quietest sound using a special

will be. bit of equipment

3 Listen to the sounds you hear. Are they loud, called a sound
quiet or both? meter.

Tell your teacher when you hear a sound.
Write down your sounds in a table of results like

this one.

Sound Quiet, Loud or Both page 8

Did anyone hear anything different?

How many sounds did the whole group hear?

Stretch zone Key idea
Sounds can
Compare your predictions with the results in 4 Making Sounds
your table. Do they agree? be quiet, loud,
or both.

75
■ For more activities, go to Workbook 1 page 75.