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• Four titles: Air and Water Pressure, Friction and Resistance, Gravity, Speed and Acceleration (see Ways to Use for synopses)
• Includes explanatory diagrams, charts, graphs, hands-on experiments and everyday examples
• Includes facts about the scientists who made important discoveries about forces
• Features amazing facts, glossary, further-information section and index
• 32-page soft-cover books
• 9½" x 7"