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15 terms

Science Vocab

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matter
something that has mass and takes up space
chemistry
the study of the properties of matter and how it changes
substance
a single kind of matter that is pure and has specific properties
physical property
a characteristic of a pure substance that can be watched without changing into another substance
chemical property
a characteristic of a pure substance that is able to change into another substance
element
a pure substance that can't be broken down any farther physically or chemically
atom
a particle that all elements are made up of
chemical bond
a force that holds two atoms together
molecule
a particle made of two or more atoms bonded together
compound
a pure substance made of two or more elements chemically combined
chemical formula
a formula that gives the elements in a compound and the ratio of atoms
mixture
when two or more substances are mixed together, but aren't chemically combined
heterogeneous mixture
a mixture where substances are distributed unevenly throughout a mixture
homogeneous mixture
a mixture where substances are distributed evenly throughout a mixture
solution
when something is dissolved in another