Term | Definition |
matter | anything that has mass and occupies space |
atom | the smallest particle of matter |
substance | matter with a composition that is always the same |
element | a substance that consists of just one type of atom |
compound | a substance containing atoms of two or more different elements chemically bonded together |
mixture | matter that is made of two or more substances that are physically combined |
heterogenous mixture | mixtures that are not evenly mixed |
homogenous mixture | mixtures that are evenly mixed- hard to tell apart |
dissolve | to mix a solvent into a solute evenly |
solvent | the substance in a solution in the largest amount |
solute | the substance that gets dissolved in the solvent |
protons | the positive sub-atomic particle in an atom |
neutrons | the neutral sub-atomic particle in an atom |
electrons | the negative sub-atomic particle in an atom |
nucleus | the part of the atom that contains the protons and neutrons |
electron cloud | the part of the atom that contains the electrons |
physical properties | A characteristic of matter that can be observed or measured with out changing the matter |
mass | The amount of matter in an object |
weight | The pull of gravity on matter |
density | The amount of mass in a given spce |
melting point | The temperature at which matter begins to change from a solid to a liquid |
boiling point | The temperature at which matter begins to change from a liquid to a gas |
solubility | The ability to disolve |
conductivity | The ability to allow heat or electricity to go through |