| A | B |
|---|
| Atom | The smallest particle of an element that has the chemical properties of that element |
| Chemical Change | A change of one substance into another substance |
| Chemical Property | A characteristic of a substance that describes how it can form a new substance |
| Compound | A substance made up of two or more different types of atoms bonded together |
| Density | A property of matter representing the mass per unit volume |
| Element | A substance that cannot be broken down into a simpler substance by ordinary chemical changes |
| Element | consists of atoms of only one type |
| Matter | Anything that has mass and volume |
| Matter | exists ordinarily as a solid, a liquid or a gas |
| Molecule | A group of atoms that are held together by covalent bonds so that they move as a single unit |
| Physical Property | A characteristic of a substance that can be observed without changing the identity |
