Science and general knowledge

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Across
  1. 2. Which planet is known as the Red Planet?
  2. 6. Which element is needed for the formation of bones and teeth?
  3. 7. Which part of the plant conducts photosynthesis?
  4. 9. Which continent is the Sahara Desert located in?
  5. 10. Which country is known for the Great Wall?
  6. 11. Whale What is the largest mammal in the world?
  7. 12. What is the chemical symbol for water?
  8. 13. What is the main source of energy for Earth?
  9. 14. Dioxide Which gas do plants absorb from the atmosphere for photosynthesis?
Down
  1. 1. What is the capital city of Australia?
  2. 3. Shakespeare Who wrote the play 'Romeo and Juliet'?
  3. 4. Graham Bell Who invented the telephone?
  4. 5. What is the boiling point of water at sea level?
  5. 8. Which instrument is used to see tiny objects like cells?
  6. 12. Which organ in the human body pumps blood?