Pick Up That Ice Cube
Can You Pick Up an Ice Cube without Touching It with Your Fingers?
| Place an ice cube into a cup of water. |
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Lay a piece of cotton string or yarn across the ice cube.
Then sprinkle some salt onto the string. |
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Wait a few moments, then lift up the string with the ice cube attached to it!
Salt lowers the melting temperature of ice, so the ice melts around the string, then it re-freezes around the string. |
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