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lesson three vocab
science!
| Question | Answer |
|---|---|
| how is a chemical change different from a physical change? | a chemical change changes it in to a all new substance while a physical change changes its form. |
| what is a chemical change? | a chemical change turns a substance in to a new substance, like baking cake batter. |
| what is a physical change? | a physical change changes the form of a substance, like water freezing to ice. |
| what does the law of conservation of mass state? | the law of conservation of mass states that matter cannot be destroyed, matter only changes from one for to another. |
| can substances have the same components but different products? | yes, substances can have the same components but have different products. you can have two rocks and each are made of the same elements but one rock might have more of one element than the other. |
| if you use a rechargeable battery and it becomes empty does it weigh less? | no, in the battery a chemical change is happening so the law of conservation of mass is in effect so no matter will be added or taken away. |
| what are all the smart vocab words? | volume, mass, weight, physical change, melting, freezing, chemical change, and law of conservation of mass. |
Created by:
spencer11
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