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Rainbows are full circles

A rainbow forms as a complete circle around the point opposite the Sun, although the ground usually hides its lower portion.

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Each visible color reaches the observer from droplets at a particular angle. From a high viewpoint with water droplets below, more of the circle can become visible.

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Lightning is hotter than the Sun's surface

Lightning can heat the air it passes through to 50,000 degrees Fahrenheit, five times hotter than the surface of the Sun.

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The adult human body is up to 60 percent water

Up to 60 percent of the adult human body is water.

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The ocean is blue because water absorbs red light

The ocean is blue because water absorbs colors in the red part of the light spectrum and leaves the blue.

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