Describing nature

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Across
  1. 3. A place in the city filled with grass, trees, lakes and plants.
  2. 4. A piece of land that is higher than everything else around it.
  3. 5. A tall plant
  4. 8. A body of water.
  5. 9. A small green plant, that is sharp and usually covers the ground.
Down
  1. 1. Lets us cross over stuff, like rivers.
  2. 2. A large, flat open area
  3. 3. A living thing that needs the sunlight.
  4. 6. Water moving, over a long distance
  5. 7. The colourful part of a plant