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matter

Terms

undefined, object
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gas
state of matter whose molecules are widely spaced, move freely at high speed and expand to occupy all space available
element
a pure substance made of only one kind of atom
solid
state of matter whose molecules vibrate in place, with little space in between, arranged in a regular pattern
liquid
matter whose molecules are close to one another but can move freely and slide past one another
properties
characteristics we can observe that help to describe the substance
matter
anything that physically exists
molecule
two or more atoms chemically combined
chemical formula
chemical recipe for a substance; letters and numbers that tell how many and what kind of atoms make up the substance
states of matter
forms of matter such as solids, liquids, gases
substance
a particular kind of matter
atom
smallest building block of matter, smallest amount of an element

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