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1
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the movement of warm liquids or gases to cooler areas
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2
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material through which electric charge flows easily
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3
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the point at which a lever rests in moving or lifting an object
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4
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transfer of thermal energy between objects that are in contact
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5
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bending of light when it passes from one material to another
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7
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a push or a pull that acts on another object
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8
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a change of energy from one form to another
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13
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the transfer of thermal energy from warmer to cooler objects
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14
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bouncing of light from a surface
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16
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a poor conductor, material through which heat of electric charge does not flow
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17
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anything that has mass and occupies space
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20
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state of matter with a definite volume, but without a definite shape
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21
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charged particle moving around the nucleus of an atom
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