Shishu Sansaar | Quizzes
Here are some interesting questions on science
What was Thomas Edison's
On June 1, 1869 Edison was granted his first patent for his electric voting machine, but no one wanted to use it, so Edison decided that he would not invent anything which would not sell. Next time he invented improved stock market ticker tape machine (1869) which earned a lot of money (then $40,000, now about $700,000) for him.
Dry ice is the solid form of what?
(2) Carbon dioxide
Ag is the chemical
symbol for which element?
Which metal is found
in liquid state on room temperature?
Created by Sushma Gupta on February 27, 2011
Modified on 11/17/13