This 2-book set includes:

The Solar System presents fascinating facts about the sun, moon, and planets. Comprehension questions and cloze procedure pages following each article reinforce understanding. Included is a colorful, fold-out poster of the solar system, as well as a pre/post-test, vocabulary list, and enrichment activity pages. 40 pages.

Beyond the Earth captures readers' interest with stories about the Challenger, meteors, constellations, space pioneers, and more. 28 pages.