Page 78 - science
P. 78
2 Choose a pair to put on your feet.
Do they make you move quieter or louder?
Which ones would you wear to creep up on an animal?
Talk to your
partner
about what
emergency
vehicles you
know. Can you
name any?
The sirens let people know that there could be danger. Why do
these vehicles
They also let people know that help is coming.
need sirens?
On busy roads other drivers hear the siren and can
move out of the way.
Key idea
● Some
animals can
move very
quietly. 4 Making Sounds
Stretch zone
● Some
What happens to the sound of a car when it is vehicles are
moving nearer to you? very loud.
79
■ For more activities, go to Workbook 1 page 79.
