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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 |