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Matter Vocabulary

QuestionAnswer
weight the effect of gravity on an object
matter anything that has mass and takes up space
open system freely allows both energy and matter in and out of the system
closed system does not allow matter and energy in or out of the system
chemical change irreversible change when two or more substances are mixed and an interaction occurs causing them to change to a new substance
physical change reversible change a change to the physical property where the final product is still composed of the original substance
expand heat particles when heating more quickly with force, spreading out
contract cool particles cool and slow down, coming together, taking up less space
poor conductor good insulator materials that slow down the transfer of heat from one material to another
good conductor poor insulator materials that allow heat to transfer from one material to another faster
mixture combination of two or more substances
substance the material, or matter, of which something is made.
Created by: KMantel
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