Page 62 - science

Making a ramp for toy cars

1 Work with a partner to make a ramp using books.

2 Make the toy car move up the ramp. What force did you use to move

the toy car up the ramp?

3 Now move the toy car along a flat surface. What force did you use?

4 Is it harder to move the toy car up the ramp or on the flat surface?

5 Now move the toy car down the ramp. Don’t let it go.

What force did you use to move the toy car down the ramp?

6 When did the car move faster? Point to your answer.

up a hill down a hill flat surface

Warning!

7 When did the car move slower? Don’t push the car
Point to your answer. very hard or it may

up a hill down a hill flat surface hurt someone.

Key idea 3 Pushes and Pulls
Stretch zone
Forces can make
What might happen if you used a bigger, objects move

heavier car? faster or slower.

63
■ For more activities, go to Workbook 1 page 63.