Bending Paper
		Materials: Two books A sheet of paper A straw

Procedure: The books are placed on a desk side by side with a space in between them. The paper is placed over both books so that it bridges them. The student uses the straw to blow air underneath the paper. This causes a downward force on the paper, and it moves down in the center.

Explanation: As the air enters below the paper, the streamlines are curved. This curvature allows the pressure to decrease below the paper. A force is created from higher to lower pressure, and this force pushes the paper down.