It's Okay to Be Smart: Why Do We Cry?
Why do humans cry? It’s weird. Humans leak water out of their faces when they get sad. Are they the only animals that do this? What does it mean? What is it for? Here’s the science of human tears. Part of the "It's Okay to Be Smart" series.
Media Details
Runtime: 4 minutes 20 seconds
- Topic: Science, Social Science
- Subtopic: Biology, Emotions, Physiology
- Grade/Interest Level: 7 - 12
- Standards:
- Release Year: 2018
- Producer/Distributor: PBS Digital Studios
- Series: It's Okay to Be Smart
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