Across
- 2. The name of the element that has the highest electro-conductivity
- 4. The scientist, who invented the Periodical table
- 5. It increases a reaction speed
- 8. Metal which is closely connected with the blood
- 11. Gas which is used to make someone sleep
- 12. The layer which save our skin from UV
- 13. How many sub-groups do we have in one periodical group
- 14. The state of an percipitate
Down
- 1. The name of chemistry teacher who became a head teacher
- 3. is losing
- 6. CnH2n+2
- 7. All points in Summative Assesment
- 9. Cations and anions are
- 10. What type of pH does water have?
- 15. What is an amount of carbon dioxide in the air?