Give It a Push! Give It a Pull! : A Look at Forces
Jennifer Boothroyd
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Why Do Moving Objects Slow Down? : A Look at Friction
Jennifer Boothroyd
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How Big? How Heavy? How Dense? : A Look at Matter
Jennifer Boothroyd
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Many Kinds of Matter : A Look at Solids, Liquids, and Gases
Jennifer Boothroyd
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From Assembly Lines to Home Offices : How Work Has Changed
Jennifer Boothroyd
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From Chalkboards to Computers : How Schools Have Changed
Jennifer Boothroyd
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From Marbles to Video Games : How Toys Have Changed
Jennifer Boothroyd
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From the Model T to Hybrid Cars : How Transportation Has Changed
Jennifer Boothroyd
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From Typewriters to Text Messages : How Communication Has Changed
Jennifer Boothroyd
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