Across
- 5. – Bending of light when it passes through media.
- 10. – Upside-down image formed by mirrors or lenses.
- 12. – Change in the size of an image.
- 13. – Chemical reaction with oxygen releasing heat.
- 14. – Spoiling of food due to oxidation.
- 15. – Loss of oxygen or gain of electrons.
Down
- 1. – Breakdown of food into simpler substances.
- 2. – Gain of oxygen or loss of electrons.
- 3. – Preparation of food using sunlight.
- 4. – Bouncing back of light from a surface.
- 6. – Loss of water from leaves.
- 7. – Release of energy from glucose.
- 8. – Main axis of a mirror or lens.
- 9. – Substance that takes part in a chemical reaction.
- 11. – Enzyme that breaks down starh