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WSHS Phys Sci
WSHS - Physical Science - Matter Terms - Stevens/Tedder
| Question | Answer |
|---|---|
| Pure substance | matter that always has exactly the same composition; an element or compound |
| Element | a substance that cannot be broken down into simpler substances |
| Atom | the smallest particle of an element |
| Compound | a substance that is made from two or more simpler substances and can be broken down into those simpler substances |
| Heterogeneous mixture | a type of mixture in which the parts of the mixture are noticeably different from one another |
| Homogeneous mixture | a type of mixture in which the substances are so evenly distributed that it is difficult to distinguish on substance in the mixture from another |
| Solution | a mixture that forms when substances dissolve and form a homogeneous mixture |
| Suspension | a heterogeneous mixture that separates into layers over time |
| Colloid | a mixture that contains some particles that are intermediate in size between the small particles in a solution and the larger particles in a suspension |