Sink or float? This simple lesson has students guess the densities of different objects and place them into water to test their predictions.

Use this lesson to show your students the different types of solids, liquids, and gases. Show them how a solid turns into a liquid and how a liquid turns into a gas by using real life examples.

Energy is an essential part of our daily lives, but the resources that power the Earth are being threatened. In this lesson, students learn about renewable and non-renewable resources, including those that need protection.

The science of matter becomes as fun as it is educational when George gets in the mix! After watching Curious George work with his 'floppafication' pot, students will learn about matter and force.

What do a bicycle and a car have in common? They both move using the simple machine wheel and axle. In this lesson, students learn about how this simple machine works, and will identify objects that use a wheel and axle.

In this lesson, your students will explore the properties of solids and learn to describe them in various ways.