Across
- 3. and reduction gain of oxygen and loss of oxygen
- 7. controls involuntary actions
- 8. thinking about activities
- 9. brain main thinking part of brain
- 11. mirror reflecting surface is curved outward
- 13. reaction single reactant breaks down to give simpler products
Down
- 1. relay signal from the fore brain
- 2. reaction displaces or remove another element
- 4. displacement reaction exchange of ions between the reactants
- 5. throwing back of light
- 6. reaction two or more substances combine to form single product
- 10. line drawn perpendicular to the reflective surface of a mirror
- 12. mirror reflecting surface is curved inward