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Invention
Puzzles
These
inventions
are used in the real life.
Can you figure
out
what they are?

Please click on the picture to check your answers.

Clue: I'm filled with sand and my
fingers can move.
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Clue: I help you work with the computer.
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Clue: I can create wonderful things when
I prance.
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Clue: you'll find me in the mud.
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More invention challenges:
 Did
people invent traffic lights or cars first?
 How
would you prevent a chair from tipping over?
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