Favourites

  1. Why do brown or blue eyes turn green in young adulthood? (more)
  2. Are Sedna and Quaoar two new planets? (more)
  3. In the book Cat's Cradle by Kurt Vonnegut, Jr., there is a... (more)
  4. Is it true that in total a bee's venom is acidic while a wasp's... (more)
  5. How many satellites orbit the earth? How many are used for... (more)
  6. Is the line spectrum that is produced by a fluorescent tube the... (more)
  7. How much liquid is in the stomach? (more)
  8. Is water from a dehumidifier de-ionized? The owner's manual for... (more)
  9. What is your personal view of global warming? Do you believe... (more)
  10. How long would it take for the Earth to freeze if the Sun burnt... (more)
  11. How much heat energy (watts) is released from the human body? Is... (more)
  12. Why does an ice cube melt faster in tap water than salt water? (more)
  13. I was and I still am wondering if there are any really complex... (more)
  14. Why does lemon prevent the browning of apples? When browning of... (more)
  15. Why does salt melt ice? (more)
  16. I have spent 4-5 hrs. attempting to magnetize some iron (Fe)... (more)
  17. Approximately how many nuclear tests do the americans alone... (more)
  18. In my science 9 class we recently had a discussion about... (more)
  19. We have an older pop machine at work with canned soft drinks. ... (more)
  20. I'm a switcher. On January 7, 2003 Apple announced a new small... (more)
  21. Does water affect a magnet's strength? Do magnets lose their... (more)
  22. Are we the center of the Universe? Does it always appear to an... (more)
  23. What is the efficiency of a typical jet engine? i.e. how much of... (more)
  24. I heard that if you set fire to methylated spirit, it will catch... (more)
  25. I would really appreciate it if someone could help me make sense... (more)
  26. What is "time"? Does the word "time" in Physics have the same... (more)
  27. What are water's special qualities, and how do they work? (more)
  28. When seperating hydrogen and oxygen from water by using... (more)
  29. I am curious. What if two magnetic field lines were to intersect... (more)
  30. What is inside an atom? In between the electrons and the... (more)
  31. My son, age 12 is asking for a chemistry set for Christmas. This... (more)
  32. I'm doing a science project in which I'm trying to see if sound... (more)
  33. Which substance plays the most important role in making a blue... (more)
  34. I understand the concept of dominant and recessive alleles but I... (more)
  35. What are the urgent steps an undergrad must take to start... (more)
  36. Why does a digital camera need a shutter- I think it should be... (more)
  37. What is the significance of Science in our society? (more)
  38. I am a year 5 teacher. I was wondering if it would be ok if I... (more)
  39. Why does a balloon travelling inside a car seem to violate... (more)
  40. What is sugar? (more)
  41. Why does it take nerves so long to grow back, more than for skin... (more)
  42. Is it true that the moon moves away from the earth a few... (more)
  43. When does your skull reach its full, adult size? (more)
  44. How long would it take for the next Ice Age to develop? (more)
  45. Why can't an insect grow large enough to terrorize a city? (more)
  46. If the sun is a heat source, and as the sun gets closer to the... (more)
  47. How many scientists does Canada have? (more)
  48. I was just wondering what the ratio is between male and female... (more)
  49. I have conducted an experiment with a parachute. I was... (more)
  50. What causes a titanium headed golf club to spark when striking a... (more)
  51. Since the Big Bang we see (with Hubert Reeves and other... (more)
  52. Hi, I was just wondering, I wanted to get into the whole... (more)
  53. How long can someone sustain without sleep? What factors would... (more)
  54. Is homosexuality inborn? (more)
  55. What are some recent Canadian contributions to research and... (more)
  56. I do not know if this might relate to Global Warming, but I... (more)
  57. If splitting the atom can create a huge amount of energy, then... (more)
  58. How is the spin imparted to a golf ball during the collision... (more)
  59. How are sand dollars bleached white? Is it by the sun or the sea? (more)
  60. I have a small laser pointer. The spot produced by the beam is... (more)
  61. What do paper and plastic bags degrade to? How much does it cost... (more)
  62. In my youth, I heard a story about an experiment: you compress a... (more)
  63. Does a magnetic and/or electric field have an affect on... (more)
  64. In winter in very cold countries like Canada and Finland, most... (more)
  65. How did scientists conclude that a major part of our genome is... (more)
  66. I imagine there must be a gene for lactose tolerance in mammals... (more)
  67. We're doing a study on future transportation at school, KTH in... (more)
  68. Can you really grow plants from the seeds found in Mammoth... (more)
  69. If I knew the centre of the universe and began to travel toward... (more)
  70. Why does vitamin C not work as well if it has been heated? I... (more)
  71. How do astronomers know the true position of stars? When... (more)
  72. Why does phenolphthalein turn pink with a base? I know it has... (more)
  73. Ethanol is the focus of many tax dollars these days. It seems to... (more)
  74. How much energy in joules will be produced from an exploding... (more)
  75. The name for gas written on CNG filling station is octane. There... (more)
  76. I have seen in a TV show that by a very high magnetic force... (more)
  77. What exactly is gravity? Is it a wave or a ray? What exactly... (more)

  78. Why is it that when calculating the volume of a pyramid, such as... (more)
  79. Can you tell me about enhancing mental performance and cognitive... (more)
  80. When a nuclear particle radiates either an Alpha, Beta or Gamma... (more)
  81. Why is it that a difference in the number of electrons in an... (more)
  82. If you find a bone in an archeological dig how can u tell what... (more)
  83. I recently removed some mercury from a thermostat and I've been... (more)
  84. My question: How will they produce plastics, tires, roads or... (more)
  85. We were learning about colour and light when my teacher Mlle.... (more)
  86. I'm curious about the possibility of "real" ... (more)

  87. What are the components of a fever strip and the chemical... (more)
  88. If the Pluto is not a Planet. How is it classified? What is it... (more)
  89. What will happen if we use petrol in a diesel engine or vice... (more)
  90. This question relates to global warming. Recent science news... (more)
  91. I was wondering where I can find good resources on determining... (more)
  92. Is it possible for the air that we breathe to either run out or... (more)
  93. Are there any planned future deep space explorations planned say... (more)
  94. How many active volcanoes are there at any onetime on the Earth,... (more)
  95. I've often wondered about this. It's kind of complicated, so... (more)
  96. I am doing a science fair project to measure which type of... (more)
  97. Can you verify the scientific validity of statements I've heard... (more)
  98. Are double yolked eggs ever viable? Can they be fertilized? If... (more)
  99. What gives yellow corn and blue corn its color? What is the... (more)
  100. What are the top ten Canadian science discoveries? (more)