Inventions What plaything was invented by Joe McVicker in 1956? Etch-A-Sketch Play-Doh Lite-Brite Silly Putty Etch-A-Sketch Play-Doh Lite-Brite Silly Putty ANSWER DOWNLOAD EXAMIANS APP
Inventions Who was the first American female to patent her invention, a method of weaving straw with silk? Margaret Knight Mary Kies Amanda Jones Marjorie Joyner Margaret Knight Mary Kies Amanda Jones Marjorie Joyner ANSWER DOWNLOAD EXAMIANS APP
Inventions When were bar code scanners invented? 1970s 1950s 1940s 1960s 1970s 1950s 1940s 1960s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who is the English physicist responsible for the 'Big Bang Theory'? Roger Penrose Michael Skube Albert Einstein George Gamow Roger Penrose Michael Skube Albert Einstein George Gamow ANSWER DOWNLOAD EXAMIANS APP
Inventions It travels over land and water. Who invented the HOVERCRAFT? O. Stricheg C. Cockerell S. Sperrow T. Henman O. Stricheg C. Cockerell S. Sperrow T. Henman ANSWER DOWNLOAD EXAMIANS APP
Inventions Who synthesized the first wholly artificial gene? Meghnad Saha Benjamin Franklin Hargobind Khorana J.J. Thompson Meghnad Saha Benjamin Franklin Hargobind Khorana J.J. Thompson ANSWER DOWNLOAD EXAMIANS APP
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