Across
- 2. another scientific word for evaporate is ____________
- 6. molecule with or more different atoms bonded
- 10. you can speed this up by adding heat energy
- 11. gas to solid or solid to gas
- 12. when a metal gets damaged by its environment it is known as ___________
- 14. a product is made by 2 or more ___________
- 15. made of sub-atomic particles
- 20. children refer fire water air and earth as ________
- 22. 1 atom is known as a __________________
- 23. gaseous form of a substance that is generally solid or liquid at room temperature
- 24. a substance that speeds up chemical changes
- 26. gas to liquid is known as ___________
- 27. group of two or more atoms that are bonded together
- 29. water does this at 100 degrees
- 30. vertical columns in the periodic table
Down
- 1. opposite of a molecular compound
- 3. reactant + reactant = __________________
- 4. when substances react, they come in contact and this is known as the
- 5. the dead sea has a high ____________ of salt
- 7. the _____________ has 118 elements
- 8. chain of molecules
- 9. pungent gas that is dangerous to breathe in
- 13. if two atoms are attracted, they are
- 16. when ice-cream is in the sun for a long time it starts to ______
- 17. things that easily turn into gas are ___________
- 18. molecule with two atoms
- 19. pineapple's __________ is known as bromelain
- 21. substance that has two or more different types of atoms that are bonded
- 25. horizontal rows in the periodic table
- 28. 3 dimensional arrangement of particles in a regular pattern