Science
Across
- 6. everything has the be the same
- 11. ice pack
- 12. two or more atoms
- 14. chunks in liquid
- 15. scientific equation
- 16. new substance is made
Down
- 1. compounds
- 2. bending paper
- 3. heat pack
- 4. substances formed after the reaction
- 5. big number
- 7. protons
- 8. 2H2+O2
- 9. little number that tells the atoms protons
- 10. presented by chemical symbol
- 13. reaction arrow