Inventions Which scientist discovered the radioactive element radium? Isaac Newton Marie Curie Albert Einstein Benjamin Franklin Isaac Newton Marie Curie Albert Einstein Benjamin Franklin ANSWER DOWNLOAD EXAMIANS APP
Inventions Which insurance salesman invented the fountain pen in 1884? Lewis Edson Waterman George Fountain Charles Kettering Sir William Grove Lewis Edson Waterman George Fountain Charles Kettering Sir William Grove ANSWER DOWNLOAD EXAMIANS APP
Inventions What device for new parents did Ann Moore invent in 1969? Bottle warmer Disposable diaper Infant carrier Baby monitor Bottle warmer Disposable diaper Infant carrier Baby monitor ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Electric Generator? Sir Alexander Graham Bell Michael Faraday Alfred B. Nobel Thomas Alva Edison Sir Alexander Graham Bell Michael Faraday Alfred B. Nobel Thomas Alva Edison ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the toothbrush invented? 1765 1790 1742 1770 1765 1790 1742 1770 ANSWER DOWNLOAD EXAMIANS APP
Inventions What item, originally called the 'Whirlwind', was invented by Ives McGaffey in 1869? Washing machine Electric mixer Vacuum cleaner Blender Washing machine Electric mixer Vacuum cleaner Blender ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS