Page 55 - science

Look at things moving in wind

In this lesson you will learn what makes things
speed up, slow down or change direction. Key words

direction
slow down/

speed up

Look at the photograph.

Is the sand falling straight
down?

Why not?

Science fact

Turbines use wind to make
The wind is blowing the sand away from electricity. The largest wind

the hand.
turbine in the world is in
The wind makes leaves in the trees move. Hawaii. It has blades the

length of a football field.

Talk about how the

wind turbine moves. What
makes its blades move?

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■ For more activities, go to Workbook 1 page 56.