Interesting Puzzle

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Across
  1. 1. What is the largest planet in our solar system?
  2. 4. What is the study of living organisms called?
  3. 6. What is the study of the universe and its contents called?
  4. 8. Which famous scientist developed the theory of relativity?
  5. 10. Who wrote "Romeo and Juliet"?
  6. 11. What is the study of the Earth's physical structure and substance called?
Down
  1. 2. What is the process by which plants make their own food called?
  2. 3. What is the largest ocean on Earth?
  3. 5. Which gas do plants use for photosynthesis?
  4. 7. What is the process of converting food into energy within living organisms called?
  5. 9. What is the capital of France?