Colorful abstract image with bubbles suspended in liquid, showcasing purity and elegance.

Water Does Weird Things for Life

Water is the most abundant molecule in every organism, and life depends on it. Its polar structure lets it dissolve many substances that cells need for reactions.

Biology: Why Water Makes Life Possible

A detailed top-down view of broken ice on winter water, illustrating environmental themes.

Why Ice Floats

Unlike most substances, water is denser as a liquid than as a solid. That is why ice floats and can insulate liquid water below in lakes and oceans.

Biology: Why Water Makes Life Possible

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