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Why Do We Have Snot?

4 minutes 22 seconds

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Does snot have a purpose other than being gross? It turns out, it’s a pretty awesome material with many benefits for the human body. A biological engineer at MIT explains the usefulness of snot. Part of the "Science Out Loud" series.

Media Details

Runtime: 4 minutes 22 seconds

Glowing star shining light on a planet. Caption: That tells you there may be a planet around that star.
Science Out Loud
Episode 1
3 minutes 33 seconds
Grade Level: 9 - 12
A humanoid robot holding a drill. Caption: to continuously pay attention to his surroundings
Science Out Loud
Episode 2
5 minutes 7 seconds
Grade Level: 10 - 12
Squid with a white body speckled in reddish brown. The color of the head matches the color of the speckles on the body. Caption: His brain has total control over what his skin is doing.
Science Out Loud
Episode 3
4 minutes 32 seconds
Grade Level: 10 - 12
Fine white tubes grow in the same direction. Caption: and carbon nanotubes grow like blades of grass.
Science Out Loud
Episode 4
3 minutes 21 seconds
Grade Level: 10 - 12
Still image from: Engineering Engines: What Do Horses, Cars, and Planes Have in Common?
Science Out Loud
Episode 5
3 minutes 32 seconds
Grade Level: 8 - 12
A man dropping a ball. Caption: potential energy gets converted into kinetic energy
Science Out Loud
Episode 6
5 minutes 5 seconds
Grade Level: 9 - 12
Woman wrapped in a blanket. Caption: you'd have cloak that would be invisible.
Science Out Loud
Episode 7
5 minutes 35 seconds
Grade Level: 10 - 12
Person holding a twisted strip of material. Caption: This shape is called a Möbius strip.
Science Out Loud
Episode 8
4 minutes 47 seconds
Grade Level: 10 - 12
A person skydiving. Caption: but all those tiny forces make a big force called drag,
Science Out Loud
Episode 8
3 minutes 46 seconds
Grade Level: 8 - 12
Long grasses and shrubs. Caption: More than 100,000 natural compounds occur in plants,
Science Out Loud
Episode 10
3 minutes 54 seconds
Grade Level: 10 - 12
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