Across
- 4. equal on both sides
- 7. breaking down
- 8. one change is taking place
- 9. new substances produced
- 10. chemical reaction using chemical formulas and symbols
Down
- 1. substance reacts rapidly
- 2. the combination of ideas to form a system
- 3. one or more substances are converted into new substances
- 5. starting substances that react
- 6. two changes are taking place