| A | B |
| matter | made up of atoms and molecules |
| atom | smallest part of an elemets |
| compound | two or more elements combined to make a new substance |
| molecules | a particle that contains more than one atom joined together |
| elements | a pure substance that cannot be broken down into any simpler substances |
| mixture | a combination of two or more substances that do not lose their identifying characteristics combined |
| solution | a mixture in which one substance dissolves in another |
| H2O and NaCL together make what | a compound |