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Inventions

Inventions
What invention caused many deaths while testing it?

Ladders
Parachute
Race cars
Dynamite

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Inventions
Which scientist discovered the radioactive element radium?

Albert Einstein
Benjamin Franklin
Isaac Newton
Marie Curie

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Inventions
When was the first elevator built?

1743
1785
1739
1760

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Inventions
What Benjamin Franklin invented?

Bifocal spectacles
Radio
Hygrometer
Barometer

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Inventions
Which of the following was first patented by an Australian in 1889?

Electric Fence
Electric Shaver
Electric Drill
Electric Heater

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Inventions
What treat was invented by 11-year-old Frank Epperson in 1905?

Cracker Jacks
Popsicle
Banana split
Cotton candy

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