4scienceWhat is the approximate distance from the surface fo the earth to the center of the earth? Closer to 4,000, 7,000 or 10,000 miles?Show AnswerShare
20scienceAbout 100 years ago, this French microbiologist developed the "germ theory" of disease which proposed that diseases are spread by living germs, or bacteria. He also found ways to stop wine and beer from becoming infected. Who was he?Show AnswerShare
11scienceWhat do you call the disease marked by uncontrollable sleepiness and attacks of brief sleep, even while standing or moving?Show AnswerShare
21scienceIn its basic form, this substance is a kind of soap, but when mixed with gasoline, it forms a deadly material used in flame throwers and incendiary bombs. What is it?Show AnswerShare
