Across
- 4. uses lenses to allow us to view small objects
- 7. a particle smaller than an atom
- 8. a reaction where fuel reacts with oxygen and releases energy.
- 10. a group of atoms bonded together
- 11. cell found in blood that protects the body
- 12. a reaction that releases energy
- 13. it photosynthesises by absorbing the sunlight
- 14. a substance burns, releasing energy
- 16. contains DNA
- 17. a process used by all living things, an exothermic reaction that needs oxygen and produces carbon dioxide and water.
Down
- 1. a reaction that transforms light energy into chemical energy
- 2. a watery fluid that fills the cell
- 3. a strong ridged structure that surrounds a plant cell
- 5. a thin layer that surrounds a cell forming a barrier
- 6. stores water and waste within a cell
- 7. a reaction that absorbs energy
- 9. a simple sugar made up of carbon, hydrogen and oxygen.
- 15. the smallest living part of an organism