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What freezes first, hot or cold water ?
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How do roots growing in water differ from roots growing in soil?
Started by neilepBoard Plant Sciences, Zoology & Evolution |
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Which weighs more, a litre of ice or a litre of water?
Started by The ScientistBoard Physics, Astronomy & Cosmology |
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After how long does water "go off" and become unsafe to drink?
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What is the "smoke" or mist you get above some water features?
Started by dentstudentBoard General Science |
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Is oceanic "bottom water" disappearing?
Started by yor_onBoard The Environment |
Replies: 8 Views: 6042 |
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