Across
- 3. Neutral charge
- 5. Two or more elements that are chemically bonded
- 6. Made up of protons and neutrons
- 10. Two or more atoms that are chemically bonded
- 11. Observed without changing the substance
- 12. The components are evenly mixed
- 13. Anything that has mass and takes up space
Down
- 1. Two or more substances that are combined
- 2. Positive charge
- 4. In its simplest form and cannot be broken down
- 5. Observed when a substance is changed
- 7. The smallest unit of matter
- 8. Negative charge
- 9. The components can be visibly distinguished