Nature

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Across
  1. 1. it is white
  2. 5. it is grey and solid
  3. 6. it shakes the ground
  4. 7. it is blue and with clouds
Down
  1. 1. it has spikes
  2. 2. it has leaves
  3. 3. it falls from the sky
  4. 4. I fall in this wheel we went fishing =)