Chemical Reaction & Matter (7.1) 2

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Across
  1. 2. Most common gas in the atmosphere.
  2. 6. Most common natural gas to heat up homes.
  3. 7. Substance at the end of a chemical reaction.
  4. 8. When reading inside a graduated cylinder, we read the bottom of the _____ line.
  5. 10. This gas can be flammable. Changes from solid to gas with no liquid phase.
  6. 12. This gas used to light up fire can create a glowing ember.
Down
  1. 1. This gas is used to blow up balloons.
  2. 3. Substance at the start of a chemical reaction.
  3. 4. When matter change from one state to another.
  4. 5. A group of atoms bonded together.
  5. 9. A property used to describe smell.
  6. 11. Basic building block in chemistry.