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Melting and Solidifying
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What causes the liquid to solidify?
Liquid solidifies when being cooled.
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What happened to the particles when it gains more energy?
The particles move faster and further apart.
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What happened to the particles when it loses energy?
The particles move slower and closer together.
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When can solid change its state to liquid?
Solid change its state to liquid by heating them/heat is added.
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What is melting?
A process where a solid changes into a liquid.
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Ice starts to melt when it ........................ energy.
gains / gain
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Water starts to freeze when it .....................energy.
loses / lose / lessen
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What is freezing?
A process where a liquid changes into a solid.
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