We called my sister this morning, and she was doing a fun experiment, so we decided to do the same at our house! We took 4 different kitchen ingredients (baking soda, oil, brown sugar, and salt) and counted how long it took for each of them to dissolve in hot water vs. cold water.
First up, the baking soda:
**according to our very scientific calculations... it took "1,2,3,4,Annie don't do that!, 8,9,10,Yuck! put that back in the garbage!, 14, 15...skip a few...25 seconds!
Hot water: 25 seconds
cold water: 25 seconds!
2nd we did the oil:
(we added food coloring for effect)
hot water: did not dissolve?
cold water: of course,did not dissolve! my kids thought this was so funny.
3rd came the Brown Sugar:
Hot water: 12 seconds! The winner by a large margin!
Cold water: 20 seconds. Still the winner, close call!
Lastly some salt:
Hot water: 20 seconds
Cold water: 25 seconds
we started with about a Tablespoon of each object, and mixed in about 1/2 C. of water. Have fun with your little scientists!