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16 Cards in this Set
- Front
- Back
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matter |
anything that takes up space and has mass |
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mass |
the amount of matter in an object |
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property |
something that you can observe with your senses |
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states of matter |
the three forms of matter |
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solid |
matter that has its own size and shape; molecules are closely packed |
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liquid |
matter that has no definite shape, but has a definite size; molecules are loosely packed; takes the shape of its container |
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gas |
matter that takes the size and shape of its container; whose molecules spread out to fill the container |
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viscosity |
the resistance of a liquid to flow; increases when temperature drops |
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freezing point |
the point at which a liquid changes to a solid; 32 degrees Fahrenheit or 0 degrees Celsius |
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melting point |
the point at which a solid changes to a liquid |
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boiling point |
the point at which a liquid changes to a gas; 212 degrees Fahrenheit or 100 degrees Celsius |
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mixture |
something made up of two or more kinds of matter and its matter does not change when it is mixed together |
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physical change |
matter that changes the way it looks without becoming a new kind of matter; examples-folding a piece of paper; the 3 states of water (ice, water, vapor) |
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chemical change |
when one kind of matter changes into a new kind of matter and cannot be changed back; example-bread baking |
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atom |
the smallest part of matter |
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molecule |
made up of one or more atoms |
