Books in Early Bird series

Uses everyday examples to show how wheels and axles function as simple machines.

Describes the basic physics behind work and simple machinery.

New

Uses everyday examples to illustrate how pulleys function as simple machines.

None

Looks at levers and uses everyday materials to show how they help make our work easier.

A simple introduction to the universe and Earth's relationship to it.

Looks at screws and uses everyday materials to show how they are simple machines that help make work easier.

Presents simple questions about the characteristics of various animals that the reader may answer by looking at the illustrations.

Explains what magnets and magnetism are, what objects are or are not magnetic, magnetic poles, and types of magnets, and shows related activities.

Introduces light, including how light rays function, what causes colored light, and the relationship between light and heat.

Brief text and illustrations describe the physical characteristics habits, and natural habitat of the chimpanzee.