Across
- 4. Solid formed in a double displacement reaction.
- 5. The bending of light around edges or through small openings.
- 6. The point where parallel rays converge in a concave mirror.
- 9. Bends when light passes from one medium to another.
- 10. Type of reaction where heat is absorbed.
- 13. Change in a substance where a new substance is formed.
- 14. Reaction in which a substance gains oxygen.
- 15. Green pigment essential for photosynthesis.
Down
- 1. Organ that filters blood in humans.
- 2. Tube that connects mouth to stomach.
- 3. Tiny vessels where exchange of gases occurs.
- 7. The number written in front of a compound in a chemical equation.
- 8. A surface or object that reflects most of the light that hits it.
- 11. Process of breaking down food to release energy.
- 12. Mirror with a curved reflecting surface.