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.

Provide students with an opportunity to closely examine the difference between a topic and main idea in a nonfiction text. Use as a stand-alone activity or a support for the Finding the Main Idea and Details in a Nonfiction Text lesson.

Use this lesson to see how animals can have very interesting relationships. Some help each other, some benefit from others, and some hurt others. Young scientists are sure to benefit from this eye-opening lesson.

Get your young scientists out of the classroom and into nature with this interactive science lesson.

Without natural resources, our world would be a very different place. Help your class understand the importance of water, plants, and soil with this exploratory science lesson.