Across
- 2. this is good for our body
- 3. i have the atomic symbol K
- 8. this was discovered by Antoine J. Balard in France in 1826
- 9. this is the most abundance resource on earth
- 12. this was discovered long time ago and started using this element
- 13. my atomic symbol is Co
- 14. this thing is used in glow sticks
- 15. i am the first one in the second period
- 16. I am used to make fireworks.
- 18. this is always used in pencils
Down
- 1. 1st place in a race will get you a type of medal
- 2. I am second in group 17
- 4. this is very good for phone cases. This is also very cheap
- 5. people used to put this on top of hats.
- 6. this is used for balloon
- 7. I have the atomic symbol Zn
- 10. this is a useful element to create airplane
- 11. This name originates from a combination of words taken from borax and carbon
- 17. this helps people to live