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Natural Cycles

20 minutes 38 seconds

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Trees and brush on the shoreline of a calm body of water. Caption: The water cycle involves the process of evaporation,

A cycle or rhythm is a repetition of behaving in a regular pattern. There are many natural cycles for living and nonliving things on earth. Covers circadian rhythm (behavior based on a 24-hour cycle), annual rhythm (based on a yearly cycle), the water cycle, and the oxygen and carbon cycle. Highlights familiar examples of each. Quiz after summary.

Media Details

Runtime: 20 minutes 38 seconds

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