SCIENCE QUESTIONS

Science questions are a fun and interesting way to learn about planet Earth, organisms and the universe. In this section you'll find an incredible collection of science questions covering a wide variety of topics.
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Can you build a better … toilet?

You may do some of your best thinking on the can, but we assume you're not thinking too much about the toilet itself. We at HowStuffWorks.com think you should be, and so we're challenging you to build a better toilet. What's your bright idea, reader?

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31-40 of 58

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