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What is COVID-19?
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What Will the COVID-19 Vaccines Do?
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What Would You Pack for a Trip to Outer Space?
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What Is a Prime Number?
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What Is Margarine?
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Why Is Coffee Called “A Cup of Joe”?
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How Does Contact Tracing Work?
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What’s Your Zodiac Sign?
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How Does a Species Become Endangered?
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Where Did Snowboards Come From?
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How Are Puzzles Made?
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Why Do Countries Have Borders?
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Who Was Rosalind Franklin?
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How Many Countries Participate in the Olympics?
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What Was the Notre Dame Fire?
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How Did Environmentalism Start?
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How Long Can Your Fingernails Grow?
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Did a Spy Start the Scouts?
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Who Were the Freedom Riders?
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How Does Bitcoin Work?