OUR PLANET EARTH

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Across
  1. 1. A tall plant with roots, a trunk, branches, and leaves.
  2. 4. A very high natural area of land, usually with steep sides.
  3. 7. A natural stream of water that flows across the land.
  4. 8. The shape of our planet, which is not a perfect sphere.
  5. 9. The solid part of the Earth's surface that is not covered by water.
Down
  1. 2. the clues and complete the crossword puzzle with the correct words.
  2. 3. The planet where we live.
  3. 5. A very large area of salt water that covers much of our planet.
  4. 6. A white or gray mass of tiny water droplets or ice crystals in the sky.