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