Across
- 3. very far apart move over each other
- 4. transfer energy to surroundings
- 7. further apart moving more freely
- 8. a mixture of two or more elements.
- 11. negatively charged electrode
- 12. take in energy from surroundings
- 15. oil, coal, gas are types of what?
- 16. is a pure substance
Down
- 1. a finite resource found in the earths crust
- 2. electron neutron protons are types of what?
- 5. reactants turn into products
- 6. positively charged electrode.
- 9. a group of atoms bonded together
- 10. a subatomic particle with a positive charge
- 13. the centre of a particle
- 14. particles are very close together in a fixed structure