Across
- 2. density
- 3. coordinate pair
- 4. circuit
- 6. inertia
- 7. compound
- 10. cad
- 13. renewable energy
- 14. constant
- 15. prototype
- 16. area
- 18. molecule
- 19. endothermic
- 20. engineering
Down
- 1. physical change
- 5. chemical change
- 8. exothermic
- 9. independent variable
- 11. code
- 12. dependent variable
- 17. element