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  1. Why do brown or blue eyes turn green in young adulthood? (more)
  2. Is it true that in total a bee's venom is acidic while a wasp's venom is basic? If so, would it m...(more)
  3. I'm a switcher. On January 7, 2003 Apple announced a new small (more)
  4. How many satellites orbit the earth? How many are used for weather forecasting? And what is the m...(more)
  5. Why does an ice cube melt faster in tap water than salt water? (more)
  6. When seperating hydrogen and oxygen from water by using electricity is there a safe way to contai...(more)
  7. How long does it take bubble gum to digest after it is swallowed? (more)
  8. What are water's special qualities, and how do they work? (more)
  9. How can I construct a simple laser beam? (more)
  10. How long would it take for the Earth to freeze if the Sun burnt out? (more)
  11. Is water from a dehumidifier de-ionized? The owner's manual for my car suggests that engine coola...(more)
  12. How long can someone sustain without sleep? What factors would change that number of hours or day...(more)
  13. How much liquid is in the stomach? (more)
  14. Does water affect a magnet's strength? Do magnets lose their strength in cold temperatures? Are t...(more)
  15. What happens when you use ethanol (unblended) in a standard, unleaded car engine? Will it work? (more)
  16. How long does it takes your hair to grow? How many years and how many inches? (more)
  17. What will happen if we use petrol in a diesel engine or vice versa? (more)
  18. Why does a balloon travelling inside a car seem to violate Newton's laws? Imagine a toy helium ba...(more)
  19. How much heat energy (watts) is released from the human body? Is there a relation to the area of ...(more)
  20. I hear there are 9 species of cicadas in Canada, but I haven't been able to get any more informat...(more)