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Uses experiments to explore such topics as how heat changes a substance, the purpose of chemical analysis, and how the human stomach digests food.
Describes a variety of experiments that explore the world of magnets and magnetism, arranged in the categories "Magnets," "Magnetic Poles," "Magnetic Force," and "Magnetism and Electricity."
Explains the properties of air through experiments which feature such topics as what air is, how much force wind has, what shape is best for flying, and how sound travels.
Presents experiments involving water that helps explain complex theories into understandable ideas.
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Experiments and text illustrate characteristics of static electricity, circuits and switches, and electrical currents.
Experiments with light explain shadows and colors, and demonstrate such concepts as reflection and refraction.