Across
- 4. a colorless, odorless, highly flammable gas, the chemical element of atomic number 1.
- 6. nonmetal with atomic number of 9
- 9. coke cans are made of....
- 12. David guetta sang a song about this
- 13. atomic number of 3
- 15. When you suck it out of something your voice gets really high
- 17. take the -ite out of superman's weakness
- 18. 2nd place wins a _____ medal and 1st gets a gold medal
- 20. they have a ____ green,yellow.
Down
- 1. non-metal atomic number is 6
- 2. atomic number of four
- 3. an element in a fire extinguisher
- 5. metalliod with an atomic number of 5.
- 7. a chemical element with symbol Ca and atomic number 20.
- 8. salt
- 10. can freeze lots on things
- 11. you breathe this
- 14. 5 pennies equal 1 ______
- 16. pennies are made of _____
- 19. a liquid and a solid with the symbol of Fe