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Life in a Drop of Water: Bacteria

Related Article: Learn more about bacteria.

Bacteria are small but grow in great numbers. Other microorganisms feed on bacteria.

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Life in a Drop of Water: Bacteria (0:38)

Bacteria are small but grow in great numbers. Other microorganisms feed on bacteria.

Life in a Drop of Water: Rotifer (0:40)

Rotifers are multicellular animals with rapidly beating hearts and cilia to draw in food. They usually stay anchored in one area, but can use food to move from place to place.

Katie's Secret: Facts About Child Sexual Abuse (0:38)

In this segment, a narrator provides statistics on the age and frequency of sexual abuse, encouraging victims always to tell someone.

Katie's Secret: Katie Tells Her Mother (1:19)

Katie, accompanied by several trustworthy adults, tells her mother about the problem at home in this segment.

Katie's Secret: Katie Joins a Support Group (5:08)

In this segment, a group of kids who have been sexually abused share stories. Katie finally shares her story.

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