Across
- 1. two or more atoms bonded together
- 4. the third step of the scientific method; what you think will happen
- 5. anything that has mass or takes up space
- 6. the smallest unit of matter
- 7. a molecule made with different kinds of atoms
Down
- 2. a molecule made with the same kind of atoms
- 3. the first step of the scientific method; you do this by using your five senses