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Chemistry Definition
Science 6 Finals
Term | Definition |
---|---|
Property | A characteristic of a substance used to describe or identify the substance |
Mass | the amount of MATTER in a substance or object; measured in GRAMS |
Volume | the amount of SPACE a substance or object takes up; measured in millimeters |
Atom | Smallest part of an element |
Molecule | Combination of TWO OR MORE ATOMS that are BONDED together |
Phase Change | When a material goes from ONE STATE OF MATTER TO ANOTHER as energy is added or removed |
Freeze (freezing) | Phase change from LIQUID TO SOLID; doesn't have to happen at a cold temperature (energy loss) |
Melt (melting) | Phase change from SOLID TO LIQUID (energy gain); doesn't have to happen at warm temperatures) |
Condensation | Phase change from GAS TO LIQUID (energy loss) |
Evaporation | Phase change from LIQUID TO GAS (energy gain) |