518 pages : 21 cm An illustrated notebook of definitions, diagrams, key concepts, and mnemonic devices geared to help middle school students learn science.-- "From the brains behind Brain Quest!"--Cover Scientific investigation -- Matter, chemical reactions, and solutions -- Motion, forces, and work -- Energy -- Outer space: the universe and the solar system -- The Earth, weather, atmosphere, and climate -- Life: classification and cells -- Plants and animals -- The human body and body systems -- History of life: heredity, evolution, and fossils -- Ecology: habitats, interdependence, and resources