Air.

1. Air

2. People need air.

3. Animals need air.

4. Plants need air.

5. Air has no color.

6. Wind is moving air.

7. The wind moves kites.

8. The wind moves boats.

9. Do people need air?

10. Do people need air?
YES!

11. Do rocks need air?

12. Do rocks need air?
NO!

13. Do pencils need air?

14. Do pencils need air?
NO!

15. Does a baby need air?

16. Does a baby need air?
YES!

17. Does an apple tree need air?

18. Does an apple tree need air?
YES!