Physical and chemical changes.
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is a physical change? | A change when the chemical composition of the substance does not change.
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| What is a chemical change? | A change when different substances are formed.
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| What is the Law of Conservation of Matter | States that energy can not be created or destroyed only changed from one form to another.
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| What are exothermic reactions? | A reaction that releases energy.
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| What are endothermic reactions? | A reaction whic energy is absorbed.
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| What is nuclear energy? | Energy stored in the nucleus of an atom.
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| What is nuclear fission? | The splitting of atoms.
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| What is nuclear fusion? | The joining of atoms.
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Created by:
light02
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