These books open up worlds inaccessible to the naked eye Fascinating yet practical beginner's guides with an abundance of amazing photographs and realistic illustrations Include clearly explained activities, experiments and projects.
Explains the science of mixtures and compounds, with explanations of scientific terms, experiments and activities, study guides, and links to helpful Internet sites.
This updated edition shows you the universe, using the latest amazing information from astronomers around the world, and space probes around the galaxy.