What do you think is the greatest invention of all time? Why?, How do you think life was different before people had electricity?, Which invention do you use every day, and what would your day be like without it?, If you could invent something new, what would it be and what problem would it solve?, Do you think the internet is a good invention or a bad one? Why?, How have inventions changed the way people travel, work, or talk to each other?.

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