Across
- 5. everything is made of...
- 7. components can not be separately observed
- 9. strong forces gluing things together
Down
- 1. composed of one kind of element
- 2. 2 of more elements bound together
- 3. consists of one kind of roses
- 4. 2 or more atoms held together by chemical bonds
- 6. components can be observed separately
- 8. 2 or more substances that are physically bonded.
- 10. the smallest unit of life