Across
- 3. non-metal in reactivity series
- 5. vertical force due to gravity
- 6. spring is __________
- 9. melts when excessive current
- 11. no movement means ________ kinetic energy
- 12. common name for aluminium oxide
- 14. example of calcium carbonate
- 15. largest _________ is vena cava
- 17. reaction between antigen and antibody in blood
- 18. largest artery
- 19. energy from the Sun
Down
- 1. use direct current
- 2. unit of energy
- 4. have single circulatory system
- 7. pores in leaves
- 8. plumbum ore
- 10. simple organism
- 12. one of endothermic reactions
- 13. wire colour is blue
- 14. thickest muscle in human heart
- 16. used to make building bases