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Science
1. What is the coldest temperature ever recorded at the South Pole?

 2. How warm has it ever got at the South Pole?

3. How old is the Sun?

4. How many stars are there?

5. What is the record for the tallest person?

6. What causes the allergy to cats?

7. How much does our stomach weigh?

8. What are freckles?

9. Why do we get goosebumps?

10. Why are polar bears white?

11. Why do we grow?

12. Why do we hiccup?

13. Why is thermometer called a thermometer?

14. How does a music box work?

15. How do planes stay up in the air instead of crashing to the ground?

16. What are shooting stars?

17. How big is the Universe?

18. What do scientists mean when they talk about the "Big Bang" and the "Big Crunch"

19. Why is the Earth round?

20. How many craters are on the moon?

21. How many wrinkles are on the average brain?

22. Why do we sneeze?

23. Why do people\'s feet stink?

24. What do we call the piece of skin that connects our upper lip to our gum?

25. Why does hair turn gray?

 26. How many different species of spiders are there?

27. What does a Portuguese Man-O-War eat?

28. Why doesn\'t a cactus need much water?

29. What is the fastest growing plant?

30. What is dry ice?

31. What are the names of all the layers of the atmosphere?

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