1.Who invented the BALLPOINT PEN?
Biro Brothers Waterman Brothers Bicc Brothers Write Brothers
2.Which scientist discovered the radioactive element radium?
Isaac Newton Albert Einstein Benjamin Franklin Marie Curie
3.What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes?
Charles Richter Hiram Walker Giuseppe Mercalli Joshua Rumble
4.This statesman, politican, scholar, inventor, and one of early presidents of USA invented the swivel chair, the spherical sundial, the moldboard plow, and the cipher wheel.
George Washington Alexander Hamilton John Adams Thomas Jefferson
5.What James Watt invented?
Diving bell Steam boat Hot air balloon Rotary steam engine
Biro Brothers Waterman Brothers Bicc Brothers Write Brothers
2.Which scientist discovered the radioactive element radium?
Isaac Newton Albert Einstein Benjamin Franklin Marie Curie
3.What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes?
Charles Richter Hiram Walker Giuseppe Mercalli Joshua Rumble
4.This statesman, politican, scholar, inventor, and one of early presidents of USA invented the swivel chair, the spherical sundial, the moldboard plow, and the cipher wheel.
George Washington Alexander Hamilton John Adams Thomas Jefferson
5.What James Watt invented?
Diving bell Steam boat Hot air balloon Rotary steam engine
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