A simple presentation of the five senses, demonstrating some ways we use them.

Describes the parts of the hand and all the things our hands help us to do.

Explains how sounds are made and the purposes they serve for both humans and other animals.

Simple text explains how soap bubbles are made, why they are always round, and why they pop.

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.