Atoms, Elements, and Compounds

Terms	Definitions
atom	the smallest component of an element having the chemical properties of the element
element	a substance that cannot be separated into simpler substances by a chemical change
compound	the result of more than one element combining in a chemical reaction
property	a quality or power belonging specially to something
molecule	the smallest particle into which an element or compound can be divided; two or more atoms combined
matter	the material that all objects and substances are made of; anything thas has mass and takes up space
mass	amount of matter in something; measured in grams
volume	amount of space anobject or substance takes up
osbservation	using senses to gather information
inference	drawing a conclusion using prior knowledge to make sense of our observations
liquid molecules	no definite shape, definite volume, not tightly packed, move about freely, slide over each other
gas molecules	no definite shape or volume, far apart, bounce off each other, move rapidly and randomly
solid molecules	definite shape and volume, attracted to each other, held tightly together, movement is limited, vibrate only
water molecule	an example of a compound
hydrogen and oxygen	examples of elements
... atoms	all molecules of a particular compound contain the same combination of ...

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