Forces of nature

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Across
  1. 1. Exerting force on a surface or substance.
  2. 7. The distribution of moisture in the forms of rain, snow, sleet, ice or hail.
  3. 8. A lightning and thunder storm often with heavy rain.
Down
  1. 2. When something gets broken down because of water, wind or rain.
  2. 3. A shower of small ice pellets emanating from the clouds.
  3. 4. The natural force that makes objects move towards the center of the earth.
  4. 5. Electrical activity in the atmosphere that occurs between clouds, causing a flash of light.
  5. 6. Water vapor that freezes in the form of crystals that descend from the clouds.
  6. 9. The rise and fall of the waters of the ocean that is a direct result of the connection between the moon and sun.