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5 
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hen a substance changes in SIZE, SHAPE, VOLUME or PHASE. 
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6 
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the change from a gas to a liquid 
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7 
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 The act of burning something 
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9 
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the change of state in which a liquid becomes a solid as energy as heat is removed 
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10 
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 the change of state from a liquid to a gas 
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1 
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A response to something  
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2 
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A substance/material used in a reaction 
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3 
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 the application of heat to change something from a liquid to a gas 
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4 
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 When a substance changes into 'another' substance with other properties. 
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8 
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the change of state in which a solid becomes a liquid by adding energy 
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