TABLE OF CONTENTS

This is a series of experiments about simple machines: levers, wheels and inclined planes. This unit was designed for use in the third grade.

THE EXPERIMENTS

Springs 1	Gears 1
Springs 2	Gears 2
Springs At Home	Gears 3
Friction 1	Wheels At Home
Friction 2	Levers 1
Friction At Home	Levers 2
Overcoming Friction 1	Levers At Home
Overcoming Friction 2	Inclined Planes 1
Overcoming Friction At Home	Inclined Planes 2
Pulleys 1	Inclined Planes At Home
Pulleys 2