Across
- 1. colloid
- 2. concave
- 3. absorption
- 6. buoyancy
- 7. acidity
- 9. alkene
- 11. acid
- 14. accuracy
- 17. concentration
- 18. compound
- 19. convex
- 20. catalyst
- 22. alkyne
Down
- 1. chemistry
- 4. conservation
- 5. accelerator
- 6. base
- 8. condensation
- 10. atom
- 12. conduction
- 13. control
- 15. convection
- 16. alloy
- 21. alkane