Hot and Cold Candy

(Guest Post by Loralee Leavitt)
In hot weather, kids crave cold drinks.  This makes summer a great time to learn about hot and cold temperatures. Here’s a candy experiment from that demonstrates how things dissolve differently in hot and cold water.
What to do:
1. Fill one cup with hot water.  Fill another cup with cold water.  (You can even add ice cubes to make it colder!)
2. Take identical pieces of brightly colored candy, such as Skittles, M&M’s, or spoonfuls of Nerds.   Put half in the hot cup and half in the cold cup.
3. Watch the colors spread as the candy dissolves.  Does the candy in hot water dissolve faster?
What’s happening:
Because molecules move faster when it’s hot, the candy in hot water dissolves much faster.  The candy in ice water might take all night to dissolve.
*Loralee Leavitt is the author of the new hit book, Candy Experiments. Thank you to Loralee for being the first guest post! If you’re interested in being a guest on Squarehead Teachers, contact us via email at squareheadteachers [at] gmail [dot] com.

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