5th

Did you know that glaciers hold nearly 2% of Earth's water?

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What makes a glow stick glow?

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Can something be a solid and a liquid at the same time?

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We all know that solar cells use the sun's light to create electricity, but how exactly does that happen?

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How do different air pressures effect how a balloon reacts? Does it matter what the balloon is filled with? Find out here!

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MIT + K12