Matter exists in three states --- solid liquid gas matter in each of its state contains tiny particles that are moving. Energy is required to bring about a change of state. When a solid is heated, the particles gain sufficient energy to break away from another and move past each other.
When thermal energy is added to a substance, its temperature increases, which can change its state from solid to liquid (melting), liquid to gas (vaporization), or solid to gas (sublimation).
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Answer:
Matter exists in three states --- solid liquid gas matter in each of its state contains tiny particles that are moving. Energy is required to bring about a change of state. When a solid is heated, the particles gain sufficient energy to break away from another and move past each other.
Explanation:
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When thermal energy is added to a substance, its temperature increases, which can change its state from solid to liquid (melting), liquid to gas (vaporization), or solid to gas (sublimation).
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