What is RH factor?
on May 4th, 2006 | One answer

Why is it colder on the top of a mountain when hot air is supposed to rise?
on March 30th, 2006 | 3 answers | 1 person likes this

Is it true that the boogeyman lives under beds?
on March 30th, 2006 | 27 answers | 9 people like this

Our biology teacher told us that plants give off carbon dioxide (and he wasn't testing us). How can I report an incompetent teacher?
on March 29th, 2006 | 7 answers

How did finches make it to the Galapagos Islands?
on March 29th, 2006 | One answer

Is it possible for an insect to become resistant to DDT (inseticide) by eating it?
on March 29th, 2006 | 6 answers | 1 person likes this