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32 Cards in this Set
- Front
- Back
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Definition of a pure substance |
a substance made of only one kind of matter |
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example of a pure substance |
any element - hydrogen, oxygen |
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definition of mixture |
a combination of two or different types of matter mixed together but not chemically combined |
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example of a mixture |
saltwater, salad, sandwich, sand |
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definition of a homogeneous mixture |
a mixture where you cannot see the different parts |
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example of a homogeneous mixture |
chocolate milk, sand |
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definition of a heterogeneous mixture |
a mixture where you can see the different parts |
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example of a heterogeneous mixture |
salad, cereal |
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definition of an element |
made up of only one type of atom - what all matter is made of |
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example of an element |
oxygen, hydrogen, copper, gold, silver |
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definition of a compound |
a chemical combination of two or more elements |
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example of a compound |
Carbon Dioxide, Water, Salt |
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Definition of a solid |
A state of matter that has a definite volume and definite shape |
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Particle placement and proximity of a solid |
particles are close together and vibrate in place |
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examples of a solid |
rock, salt, ice |
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definition of a liquid |
a state of matter with a definite volume, but no definite shape |
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particle movement and proximity of a liquid |
particles are close together but move around |
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definition of a gas |
a state of matter with no definite shape or volume |
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particle proximity and movement of a gas |
particles are far apart and fly around at high speeds |
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definition of viscocity |
the resistance of a liquid to flowing |
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example of a liquid with high viscocity |
honey, syrup |
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example of a liquid with low viscocity |
water, juice |
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Definition of a chemical change |
a change that creates a new substance with new properties - cannot be reversed |
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example of a chemical change |
burning wood; lighting a match |
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definition of a physical change |
a change in a physical property of matter - can be reversed |
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example of a physical change |
crumpling up a paper, melting a crayon, boiling water |
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definition of melting |
solid to a liquid |
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definition of freezing |
liquid to a solid |
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definition of vaporization |
liquid to a gas |
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definition of condensation |
gas to a liquid |
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definition of sublimation |
solid to a gas |
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definition of deposition |
gas to a solid |
