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Hannah Science
Science
Term | Definition |
---|---|
Matter | anything that has mass and takes up space |
Substance | a single kind of matter that is pure; it always has a specific composition and properties |
Physical Properties | a characteristic of a pure substance that can be observed without changing it into another substance |
Chemical Properties | a characteristic of a pure substance that describes its ability to change into different substances |
Element | a simplest substance; a pure substance that cannot be broken down into any other substances by physical or chemical means; can be identified by its specific physical or chemical properties |
Atom | a basic particle from which all elements are made |
Compound | is a pure substance of 2 or more elements chemically combined in a set ratio; is difficult to separate into its elements |
Mixture | is made up of 2 or more substances that are together in a same place, but not chemically combined; each substance in a mixture keeps its individual parts, the mixture parts aren't combined in a set ratio, mixture can be separated into its components |
Heterogeneous mixture | you can see the different parts |
Homogeneous mixture | is a solution-you cannot see the different parts |
Solution | does not have to be a liquid |