Inventions What Enrico Fermi invented? Nuclear reactor Cyclotron X ray machine Betatron Nuclear reactor Cyclotron X ray machine Betatron ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the toothbrush invented? 1742 1765 1770 1790 1742 1765 1770 1790 ANSWER DOWNLOAD EXAMIANS APP
Inventions Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that? Golf tee Motorboat Hang glider Water skis Golf tee Motorboat Hang glider Water skis ANSWER DOWNLOAD EXAMIANS APP
Inventions What James Watt invented? Rotary steam engine Steam boat Hot air balloon Diving bell Rotary steam engine Steam boat Hot air balloon Diving bell ANSWER DOWNLOAD EXAMIANS APP
Inventions Who came up with the idea for INSTANT MASHED POTATO? E. Asselbergs W. Raleigh S. Tuberosum K. Edwards E. Asselbergs W. Raleigh S. Tuberosum K. Edwards ANSWER DOWNLOAD EXAMIANS APP
Inventions What treat was invented by 11-year-old Frank Epperson in 1905? Cotton candy Banana split Popsicle Cracker Jacks Cotton candy Banana split Popsicle Cracker Jacks ANSWER DOWNLOAD EXAMIANS APP
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