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