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Science chapter 14
Science chapter 14 1
Question | Answer |
---|---|
molecule | two or more atoms joined together |
nucleus | a dense area in the center of an atom that contains protons and neutrons |
element | matter made up of only one kind of atom |
periodic table | a chart that scientists use to organize the elements |
atom | the smallest particle that still behaves like the original matter it came from |
volume | the amount of space an object takes up |
physical change | A change in which the form of a substance changes but the substance still has the same chemical makeup |
density | The measure of how closely packed an object's atoms are |
mixture | A combination of two or more different substances |
solution | A mixture in which all the parts are mixed evenly |
combustibility | A measure of how easily a substance will burn |
reactivity | The ability of a substance to go through a chemical change |