Unit 2: Extra Credit

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Across
  1. 2. the day-to-day state of the atmosphere.
  2. 5. A substance produced during a chemical reaction.
  3. 8. A number placed in front of a chemical formula that represents the number of molecules.
  4. 10. An instrument that measures the amount of atmospheric pressure.
  5. 11. The natural movement of air caused by the uneven heating of the Earth by the Sun.
  6. 12. A substance that takes part in and undergoes change during a chemical reaction.
Down
  1. 1. The number that comes after an element in a chemical formula.
  2. 3. A rising and falling current caused by molecules heating and cooling.
  3. 4. A large tropical weather system with extremely low air pressure, high wind, and heavy rain.
  4. 6. The transfer of energy/heat through the air that we can feel.
  5. 7. A scientific tool used to measure wind speed.
  6. 9. The amount of water vapor or moisture content in air.
  7. 13. The transfer of heat energy from one molecule to another up a metal rod.