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Year: 2,020
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Edition: 1
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City: New York, NY
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Pages: 160
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Pages In File: 160
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Language: English
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Topic: 181
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Identifier: 1465491465,9781465491466
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Asin: B088623ZWY
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Commentary: Vector PDF
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Color: 1
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Paginated: 1
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Org File Size: 67,633,659
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Extension: pdf
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Tags: Popular Science Children
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Toc: Contents Matter States of matter Changing states Density Materials Separating mixtures Elements Atoms Molecules Chemical reactions Rapid reactions Combustion The pH scale Life What is life? Bacteria Cells Types of cell Plants Flowers Seeds Food chains Digestion Breathing Circulation Waste disposal Bones Muscles Nervous system The eye The ear Body defenses Growing up Reproduction DNA Evolution Energy What is energy? Heat Sound waves Light Reflection Refraction White light Seeing color Electromagnetic radiation Static electricity Electric current Magnetism Forces What are forces? Deforming forces Acceleration Momentum Action and reaction Gravity Friction Drag Pressure Hydraulics Floating Flight Simple machines Earth and space Earth Plate tectonics Rocks Fossils Water cycle Seasons Climate Greenhouse effect Moon Solar system Milky Way Glossary Index