Ice Cold 14 September 2018
I Made A Matchstick Stick To Ice Just Using Salt.
(Not) Challenging Because The Ice Melted On My Computer But Matua Saved My Computer
Because He Swiped His Hand Under The Ice Just Before The Water Hit My Batery
Why It Happened Simply Because
You will need;
(Not) Challenging Because The Ice Melted On My Computer But Matua Saved My Computer
Because He Swiped His Hand Under The Ice Just Before The Water Hit My Batery
Why It Happened Simply Because
You will need;
- A bowl of cold water
- A matchstick
- An ice cube
- Table salt
Instructions:
- Place the ice cube carefully in the bowl of cold water
- Gently place the match lengthwise on top of the ice and try to lift the ice cube
- Put the matchstick back on the ice and sprinkle a little salt along the line where it touches the ice cube
- Wait for 30 seconds and then attempt to pick up the ice cube again
What’s the science?
At first, the ice cube and water are in equilibrium meaning that the rate of freezing and melting is the same.
The salt lowers the rate at which the water freezes, so the ice melts faster.
This releases lots of energy in the form of heat, so everything gets colder, including the ice cube. Where there’s no salt (under the match) the ice cube refreezes, freezing the match in place.
Extra for experts:
Why do we sprinkle salt on icy roads?
Because It Dissolves The Ice On The Streets, Roads, And Alleys.
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