Invisible But Real

Materials

Styrofoam packaging pieces Hand fan

Book Balloon

Pail of water

Instructions

1. Scatter Styrofoam pieces on the floor in a circle slightly larger than the book.

2. Gently drop the book into the center of the circle. Pieces will scatter. What made them move? Air was pushed out of the way by the falling book.

3. Scatter the pieces in front of an open door. Guess what will happen when the door closes. Test the theory by pushing the door hard.

4. Use a hand fan to make the pieces move.

5. Blow up a balloon. It is filled with air.

6. Push the balloon down in a pail of water. Water is pushed out of the way and rises.

7. Put a light-weight book on top of a flat balloon and then blow up the balloon. The book is lifted by the air!More to doArt: Paint a picture by blowing the paint around with a straw.More science: Make a windsock with a 9" x 12" (22.

5 cm x 30 cm) construction paper cylinder decorated at one end with tissue paper streamers. * Make kites from paper grocery bags and test them on a windy day.Sand and water table: Use a bulb baster to transfer colored water from one bowl to another.Air inside keeps water out. You have to squeeze out the air to make room for water.