Across
- 5. the process by which green plants make their own food
- 6. the centre of the reflecting surface of the spherical mirror
- 7. converts fats into fatty acids
- 10. aqueous solution of NaCl
- 11. when metal is attacked by substances such as moisture, acids, etc
- 13. waste material of transpiration
- 14. largest artery in our body
- 15. substance which takes part in a chemical reaction
Down
- 1. it produces urine.
- 2. upper jaw is called
- 3. nutrition in which organism takes in food and breaks it down inside their body
- 4. it is a substance which is added to increase the rate of a reaction but never participates in the reaction
- 8. reaction in which heat is absorbed by the reactants to form the product
- 9. h2 burns with what sound.
- 12. when oils and fats become rancid their smell and taste changes it is called