In the forest

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Across
  1. 3. – The parts of a plant that grow under the ground.
  2. 5. – A hard piece of stone.
  3. 6. – A small thing that can grow into a new plant.
  4. 7. – Small or big hard rocks.
  5. 8. – The green part of a tree or plant.
Down
  1. 1. – The outside of a tree.
  2. 2. – A big piece of a tree after it is cut down.
  3. 4. – A hard cover of a snail or some sea animals.
  4. 5. – Many colours in the sky after rain.