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More science words

QuestionAnswer
physical change a change in matter that does not affect it's chemical composition
chemical change a process that changes substances into new substances
atom the smallest unit of element that has the properties of that element
molecule two or more atoms joined together
element a pure substance that cannot be broken down into simpler substances by chemical reaction
physical property a characteristic that can be observed or measured that is used to describe matter and can be observed or measured without changing it's composition
chemical property a characteristic of a substance that is observed during a chemical change in which the composition or identify of the substance is changed
periodic table of elements the chart scientists use to organize and classify all known elements; scientists have found 96 natural elements
solid matter with a fixed volume one shape
liquid a state of matter with defined volume but mo defined shape
gas a state of matter without any defined volume or shape
density the measure of matter in a given volume of a certain substance
Created by: RainbowFart190
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