8scienceIf you drop an object from the top of a tower, how many feet will it fall in the first second?Show AnswerLearn MoreShare
6scienceShaped like a flat disk, it's about 100,000 light years in diameter, and about 10,000 light years thick. What is it?Show AnswerLearn MoreShare
13scienceThe study of handwriting as a means of analyzing character is called what?Show AnswerLearn MoreShare
3scienceWhat is the name of the organic molecule that carries oxygen in the blood, and gives blood its red color?Show AnswerLearn MoreShare
12scienceWhat do we call an organism that lives on a host which it usually injures?Show AnswerLearn MoreShare
11scienceGerman physicist Gabriel Fahrenheit, in the early 18th century, called 32 degrees the freezing point of water. And 0 degrees on his scale represented the freezing point of what mixture?Show AnswerLearn MoreShare
5scienceThe length of one earth day is approximately 24 hours (actually 23'56). Which planet in our solar system has the longest day, equivalent to about 244 earth days?Show AnswerLearn MoreShare
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 AnswerLearn MoreShare
15scienceThe thickest part of the human skin is located in which general areasShow AnswerLearn MoreShare
11scienceWhat do you call the disease marked by uncontrollable sleepiness and attacks of brief sleep, even while standing or moving?Show AnswerLearn MoreShare
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 AnswerLearn MoreShare