How tough are you?
How much pain can you stand? Here's an experiment that won't injure you but will test just how tough you are. You can have a pain endurance contest with your friends. For each person, you will need a glass and a can of soda. Fill the glass with a freshly opened can of soda. Stick your tongue into the soda while someone counts off seconds (on-thousand-one, one-thousand-two, one-thousand-three, etc.) See how long you can keep your tongue in the soda. Do some people have better pain endurance than others?
Pain Contest
This is from

Feeling Your Way: Discover Your Sense of Touch.

Illustrated by Cynthia C. Lewis.

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