Text, illustrations, and diagrams provide answers to questions about outer space, covering constellations, eclipses, telescopes, observatories, great astronomers, the Sun and planets, and more.
An introduction to recycling that explains why it is important; describes how paper, metals, plastic, glass, and other materials are recycled; and discusses composting.
A reference encyclopedia that includes activities, key vocabulary, and web links related to numbers, energy and matter, materials, living things, and space.