Cheer up! Here is a fascinating featurette about why people cry. Hank explains different types of tears, what causes them, their purposes, and even their particular chemical components. This would make a nice addition to your human body unit when covering the eye, or even to a psychology unit.

Concepts

emotions, adaptations

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Additional Tags

tears, crying, adaptation, emotions, lacrimal gland, science

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Classroom Considerations

• This video is hosted on YouTube

Pros

• A fast-talking narrator keeps viewers' attention
• A unique topic that makes a memorable enrichment to traditional life science or psychology curriculum

Cons

• None