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  1. What must occur for two parents with blood type AB to have a child with blood type O? (more)
  2. Does the Earth's core rotate with the crust?? (more)
  3. What are some recent Canadian contributions to research and development? I was challenged by some...(more)
  4. Why is it that a difference in the number of electrons in an atom makes a completely different ki...(more)
  5. I have spent 4-5 hrs. attempting to magnetize some iron (Fe) washers using a 12V battery and insu...(more)
  6. My mom and I are having an argument. She claims that the gene for blonde hair will be wiped out ...(more)
  7. I am doing a science fair project to measure which type of ibuprofen dissolves fastest in stomach...(more)
  8. What are the surfaces of Uranus and Neptune like? Is there wind or precipitation on either plane...(more)
  9. What is inside an atom? In between the electrons and the neutron? Maybe if you pictured the atom ...(more)
  10. What is sugar? (more)
  11. Why does phenolphthalein turn pink with a base? I know it has something to do with light, but i d...(more)
  12. In my science 9 class we recently had a discussion about physical and chemical changes. Here is t...(more)
  13. I'm doing a project on mercury in water. I was wondering if and how you get mercury out of lakes...(more)
  14. Is there a difference between total recall and a photographic memory? (more)
  15. Are Sedna and Quaoar two new planets? (more)
  16. The name for gas written on CNG filling station is octane. There are other members in the alkane ...(more)
  17. In the book Cat's Cradle by Kurt Vonnegut, Jr., there is a chemical compound called Ice-nine. Ice...(more)
  18. When does your skull reach its full, adult size? (more)
  19. We have an older pop machine at work with canned soft drinks. Sometimes, when a pop is opened th...(more)
  20. What is "time"? Does the word "time" in Physics have the same meaning as the word time in the phr...(more)