Introduces the tree as "the biggest plant that grows" and explains the life cycle of an apple tree.

Brief text and illustrations describe the various parts of the foot and all the things feet help us to do.

A simple explanation of how a shadow is formed.

Discusses the importance of sleep and what happens to our brains and bodies during slumber.

A simple introduction to the appearance, growth, habits, and behavior of starfish.

Discusses the discovery and analysis of Archaeopteryx, a feathered dinosaur which may have been an ancestor of modern birds.

Simple language and humorous illustrations show how forces make things move, prevent them from starting to move, and stop them from moving.