Across
- 3. the process of changing chemicals
- 5. electricity moving through things
- 8. reaction a chemical reaction accompanied by the absorption of heat
- 11. made from fossils
- 12. the centre of an atom
- 13. the process of two substances combining to make a new one
- 15. separation of a liquid mixture into fractions differing in boiling point
- 17. the exact opposite of a chemical synthesis
- 18. how much energy something could have
- 20. what is made
- 21. a liquid or gel which contains ions
- 23. chemical decomposition produced by passing an electric current through a liquid or solution containing ions
- 24. a reaction that produces heat
- 26. a reaction where two or more elements or compounds combine to form a single compound
- 27. mixing chemicals
- 28. a substance that takes part in a reaction
Down
- 1. commonly known as burning
- 2. liquid substance
- 4. able to be dissolved
- 6. an insoluble solid that emerges from a liquid solution
- 7. how trees make air
- 9. energy created by a chemical reaction
- 10. energy created by an object moving
- 14. the building blocks of the universe
- 16. organic fuel
- 19. a compound of hydrogen and carbon
- 22. cause (a substance) to be deposited in solid form from a solution.
- 25. like an atom