KIDS' SCIENCE CHALLENGE #3
a) How many zeros are there in the number one-billion as used in the United States?
b) Do the British always use the number one billion to mean the same size number as the Americans?
(REFERENCE for a) and b) )
Anders Celsius created the Celsius temperature scale. In 1742 his scale had 100 divisions. Boiling water and freezing water were at the two opposite end points on the scale.
When he created the scale, did Celsius put boiling water at the 0 degrees point or at the 100 degrees point?
Back to the list of Challenges ... Next Challenge