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Matter 2
Forms of Matter and Energy
| Term | Definition |
|---|---|
| mixture | a physical combination of two or more substances that are blended together without forming new substances |
| solution | a mixture of substances that are blended so completely that the mixture looks the same everywhere |
| physical change | a change of matter in size, shape, or state without any change in identity |
| chemical change | a change of matter that occurs when atoms link together in a new way, creating a new substance different from the original substance |
| reactant | an original substance at the beginning of a chemical reaction |
| acid | a substance that tastes sour and turns blue litmus paper red |
| base | a substance that tastes bitter and turns red litmus paper blue |
| indicator | a substance such as litmus paper whose color changes when it is mixed with an acid or a base |
| pH | the scale that tells how acidic or basic a solution is |
| kinetic energy | the energy of any moving object |
| potential energy | stored energy |
| conduction | the passing of heat through a material while the material itself stays in place |
| convection | the flow of heat through a liquid or a gas, causing hot parts to rise and cooler parts to sink |
| radiation | the transfer of heat through electromagnetic rays |
Created by:
dionnej
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