The Science Behind a Cold Pack
Related Subjects:
Business Education
Social Issue:
  Environment
Target Grade Level(s):
Grade / Year 5
Future Friendly School Values:
PROJECT DESCRIPTION:

Hello Guys,

Research Questions:

How do cold packs work?

In chemistry, what happens during an endothermic reaction?

Which substance cools off water the most: baking soda, sour salt, Morton Lite, washing soda, or a deicer?

Did you ever wonder what is inside of a cold pack? You can make a basic cold pack by mixing a salt (such as potassium chloride) or soda (such as baking soda) with water. Mixing the two creates a chemical reaction that uses up energy, which makes the mixture colder. You can see which substance cools off water the most by trying out this experiment.

Materials:

Tap water

Measuring cup

Cup

Sodium bicarbonate (baking soda)

Citric acid (sour salt)

Potassium chloride (Morton Lite)

Sodium carbonate (washing soda)

Calcium chloride (deicer)

Thanks

I didn't find the right solution from the internet.

References:

- https://www.education.com/science-fair/article/science-behind-ice-pack/

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