| A | B |
|---|
| matter | has mass and occupies space |
| chemistry | study of the properties of matter |
| substance | matter that is pure |
| physical property | can be observed without changing |
| chemical property | can change into a different substance |
| element | can't be broken down into other substances |
| atom | basic particle from which all elements are made |
| chemical bond | holds atoms together |
| molecule | made of 2 or more atoms |
| compound | made 2 or more elements |
| chemical formula | symbols that represent the element |
| mixture | substances mixed but not chemically |
| heterogeneous mixture | substances are unevenly distributed |
| homogeneous mixture | substances are evenly distributed |
| solution | solvent and one solute same properties |
| weight | force of gravity on an object |
| mass | how much matter is in an object |
| international system of units | measures the properties of matter |
| volume | amount of space matter occupies |
| density | ratio of mass to volume |
| physical change | change that doesn't change its identity |
| chemical change | change where a new substance is formed |
| L.O.C.O.M. | energy can't be created or destroyed |
| energy | ability to do work |
| temperature | measure of the energy of motion |
| thermal energy | total potential of kinetic energy |
| endothermic change | energy is taken in |
| exothermic change | energy is given off |
| kinetic energy | energy due to motion |
| potential energy | stored energy |
| chemical energy | energy stored in chemical bonds |
| electromagnetic energy | energy that travels through space as waves |
| electrical energy | moving electrical charges |
| electrode | metal strip that conducts electricity |
