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density vocab
vocabulary words
Question | Answer |
---|---|
independent variable | Variable that is adjusted to different values by the experimenter (variable you change) |
dependent variable | Variable that changes when the factor being tested is changed (data you collect) |
Weight | A measure of the force of gravity on an object |
Mass | A measure of how much matter is in an object |
Volume | The amount of space that matter occupies |
Density | The ratio of the mass of a substance to its volume |
physical change | A change in a substance that does not change its identity. |
chemical change | A change in which one or more substances combine or break apart to from new substances |
Solid | A state of matter that has a definite shape and definite volume. |
Liquid | A state of matter that has a definite volume but no shape of its own. |
Gas | A state of matter that has neither definite shape nor definite volume. |
Vaporization | When the particles in a liquid gain enough energy to form a gas. |
Melting | Change in state from a solid to a liquid. |
Freezing | Change in state from a liquid to a solid. |
Boiling | When a liquid changes to a gas below its surface as well as at the surface. |
Sublimation | When particles of a solid do not pass through the liquid state as they form a gas. |
Plasma | A state of matter that consits of a gas-like mixture of free electrons and nuclei of atoms that have been stripped of electrons. |