| A | B |
|---|
| volume | The amount of space taken up by an object. |
| atom | The smallest particle that has all the properties of an element. |
| molecule | The smallest particle of a compound that can exist and still have all the properties of that substance. |
| element | A pure substance that is made up of two or more different elements. |
| compound | A pure substance that is made up of two or more different elements. |
| mixture | Two or more substances that are put together but that keep their identities and can easily be taken apart. |
| solution | A mixture in which one substance is dissolved in another substance. |
| solvent | The substance in a solution that dissolves the solute. |
| solute | The substance in a solution that is dissolved by the solvent. |
| physical change | A change in which a substance changes its state by remains the same substance. |
| density | A measurement of the amount of matter, or particles, in an object compared to the amount of space taken up by the object. |
| energy | The abiltiy to cause change and do work. |
| radiation | A method by which heat energy travels by waves through empty space. |
| convection | A method by which heat energy rises or travels by the movement of flowing gases or liquids. |
| conduction | A method by which heat energy travels by direct contact from one particle to another particle. |
| chemical change | A change by which a substance becomes a different substance. |
| electrons | Negatively chared particles that are part of atoms and that flow through wires in the form of electricity. |
| oxidize | To combine a substance with oxygen in a chemical change. Rusting and burning are examples. |
