Counting Atoms and Elements Station Lab

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Across
  1. 2. Shot out various kinds of atoms.
  2. 3. A molecule that is always found in the same ratio.
  3. 4. The building blocks of all life.
  4. 7. The combination of hydrogen and carbon atoms.
  5. 10. What everything on earth is made up of.
Down
  1. 1. microscope The only thing molecules can be seen with.
  2. 5. A well known example of an element with an atomic symbol of O. Humans use this to breathe.
  3. 6. Always set up in a specific way (ratio)
  4. 8. Bang The event that happened 300,000 years before the first molecules formed.
  5. 9. A group of two or more atoms that are bonded together.