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6th Unit 2 Les.1 2 3
Properties of Matter
Term | Definition |
---|---|
Matter | anything that has mass and takes up space. |
Atom | the smallest part of an element that still has the same chemical properties of the element. |
Physical property | a property that can be observed without changing the identity of a substance. |
Weight | the measurement of the pull of gravity on an object. |
Volume | the amount of space that matter takes up. |
Density | the measurement of how much mass fits within a certain volume. |
Fluid | a material that can flow and has no definite shape. |
Buoyancy | the upward push of a liquid or a gas on an object placed in it. |
Archimedes’ Principle | the idea that the buoyant force on an object is equal to the weight of the fluid displaced by the object. |
Solid | matter that has a definite shape and occupies a definite amount of space. |
Liquid | matter that takes up a definite amount of space but has no definite shape. |
Gas | matter that has no definite shape and does not take up a definite amount of space. |
Temperature | a measurement of how hot or cold something is. |
Melting point | the temperature at which a solid melts to become a liquid. |
Freezing point | the temperature at which a liquid changes into a solid |
Boiling point | the temperature at which a liquid becomes a gas |
Mass | the amount of matter in an object. |