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14 Cards in this Set

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  • Back
INDIRECT EVIDENCE
A set of clues that scientists use to make logical guesses about things they cannot see or test directly.
ELEMENT
Matter that is made up of only one kind of atom.
SYMBOL
A short way to write the name of an element.
COMPOUND
A new substance that forms when atoms of different elements combine.
FORMULA
A group of symbols and numbers that stand for a compound.
MOLECULE
The simplest particle of many compounds.
ELECTRON
A tiny, negatively charged particle that travels around the nucleus af an atom.
NUCLEUS
The central part of an atom
NEUTRON
A particle in the nucleus of an atom.
HYPOTHESIS
A logical guess based on direct and indirect evidence.
MASS
A measure of the amount of matter in a object.
MATTER
Anything that has mass and takes up space.
ATOM
The basic unit of all matter, the smallest particle of an element.
PROTON
A positively charged particle in the nucleus of an atom.