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25
×
A sundial/shadow clock can be useful in
cloudy days
sunny days
rainy days
stormy days
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×
eraser
Reset score!
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×
rocket
Go to first place!
Okay!
×
gift
Win 5 points!
Okay!
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banana
Go to last place!
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25
×
Who was the first to aim a telescope to the sky?
Galileo Galilei
Charles Babbage
Wright Brothers
Hans Lippershey
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20
×
What is the object that casts a shadow on the dial of a sundial?
dial
gnomon
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25
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Who invented the first telescope?
Galileo Galilei
Alexander Graham Bell
Neil Armstrong
Hans Lippershey
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25
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Who created the first long-lasting light bulb?
Thomas Edison
Alexander Graham Bell
Thomas Watson
Galileo Galilei
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25
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Who invented the first engine-powered glider?
Montgolfier Brothers
Wright Brothers
Abbas Ibn Firnas
Hans Lippershey
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20
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Why did Wright Brothers build their own engine?
The engine was too expensive.
There was no such powerful engine available.
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boom
Lose 50 points!
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seesaw
Swap points!
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gift
Win 15 points!
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baam
Lose 5 points!
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20
×
What is an invention?
A plagiarism.
A new creation.
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seesaw
Swap points!
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gift
Win 10 points!
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shark
Other team loses 20 points!
Okay!
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baam
Lose 25 points!
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25
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What is NOT a timekeeping device back in the older days?
sundial/shadow clock
water clock
smartwatch
candle clock
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20
×
Who invented papers?
Cai Lun
Charles Babbage
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25
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Who invented a computer?
Charles Babbage
Cai Lun
Hans Lippershey
Thomas Watson
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25
×
Who discovered the law of pendulum?
Galileo Galilei
Charles Babbage
Thomas Watson
Montgolfier Brothers
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20
×
What gas that lifts up an airship to the sky?
Krypton
Oxygen
Helium
Hydrogen
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