The germinating seed.

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Across
  1. 1. The part of the plant that grows down into the soil
  2. 6. The process by which a seed starts to grow into a plant
  3. 7. The increase in size or development of a living thing
  4. 9. The part of the plant that grows upwards towards the light
Down
  1. 2. How hot or cold something is
  2. 3. A young plant g(root)rowing from a seed
  3. 4. A small object that can grow into a plant
  4. 5. Energy from the Sun that helps plants grow
  5. 8. A liquid needed by seeds to begin germination
  6. 10. A gas in the air that seeds need to respire