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changes of matter
Physical and chemical changes
| Term | Definition |
|---|---|
| mass | The amount of matter in an object |
| Volume | The amount of space an object or substance takes up |
| Density | The amount of mass in a specific volume |
| Formula for density | Mass divided by volume |
| Formula for volume | Length X Width X Height |
| Weight | The measure of gravitational pull on an object equal to the body's mass on Earth |
| Solid | Has a definite shape and volume |
| Liquid | Has a definite volume but not a definite shape |
| Gas | No definite shape or volume |
| exothermic | releases thermal energy; resulting in a heating of the environment and cooling of the substance |
| endothermic | absorbs thermal energy; resulting in cooling of the environment and heating of the substance |