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sci. test 1
matter: all about matter
| Question | Answer |
|---|---|
| matter: | the word scientists use to describe the "stuff" that all things are made of |
| Energy: | The word scientists use to describe what moves that "stuff" |
| solids: | -take up space -does not change (unless cut) -objects can't pass through it -has weight |
| liquids: | -take up space -takes the shape of its container -objects can pass through it -has weight |
| all matter........... | takes up space |
| volume...... | describes the amount of space that an object takes up |
| mass........ | describes the amount of actual matter in an object |
| physical changes | appearance may change but no new substance is produced |
| chemical changes | produce a new substance (change in color, smell, gas is produced....) |
| conductors | carry heat easily. *metal, water..... |
| Insulators | make it more difficult for heat to transfer *rubber, cloth...... |
| heat is...,.... | thermal energy |
| what's in an atom???? | -protons=positively charged particle -electrons=negatively charged particle -neutron=particle without a charge |