Across
- 3. A change in which a substance's physical properties are altered but with no change in its chemical identity.
- 6. _____ is anything that has mass and occupies space.
- 7. _____ has fast-moving particles that are separated by large average distance.
- 8. ______ is a combination of more than one pure substance.
- 10. ____ can link to form a molecule.
Down
- 1. The chemical symbols and numbers indicating the atoms contained in the basic unit of a substance.
- 2. ________ mixture is substances are not uniformly mixed.
- 4. A substance made of atoms of more than one elements bound together.
- 5. ______ takes the shape of its container.
- 9. What matter that has a definite volume and a definite shape is ___.