You can read the questions in order by clicking on the icon below, or you can use the list to jump to any particular question.
Question 1: Where does all the dirt come from to bury ancient cities?
Question 2: Why is the sky blue?
Question 3: What keeps the moon from falling down?
Question 4: If the earth rotates so fast, why don't we fall off?
Question 5: How do cassette tapes work?
Question 6: Why does fizz float to the top in carbonated sodas?
Question 7: Why is Mars red?
Question 8: Why does alcohol make people drunk?
Question 9: Why again is Mars red?
Question 10: Why is the sun so bright?
Question 11: What's inside the slits in electric outlets that makes lights work?
Question 12: How does a zerox machine work?
Question 13: How do glasses and contact lenses work?
Question 14: Why is glass transparent?
Question 15: How do birds fly?
Question 16: What makes a car go?
Question 17: How do air-conditioners work?
Question 18: What about the night sky?
Question 19: What about global warming?
Question 20: Why don't computers get any cheaper?
Question 21: Why does popcorn pop?