Colder than Ice Lesson Plan - Fun Activity, Effect of Salt on the Temperature of Ice

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Fun Water Lesson Plans and Activities for Kids

Ice Lesson Plan Colder than Ice

This simple activity requires minimal organization and effort to prepare but it will get kids thinking about scientific reasoning as they think long and hard to explain the outcome of their experiment.

What kind of impact does salt have on the ice temperature? Only one way to find out, give this colder than ice lesson plan a go and enjoy the results.

Does salt have an effect on the temperature of ice?

What you will need:

A stopwatch
A thermometer (digital if possible)
A spoon
A glass rod for stirring
Cups
Salt

Instructions:

Fill a cup nearly to the top with crushed ice.
Use the thermometer to measure the temperature of the crushed ice.
Record the current temperature for comparison later.
Add 5 spoons of salt and mix well.
Check and record the temperature of the ice mixture once every minute over the next fire minutes. Use your stopwatch to follow the time accurately. Chart the results into a graph and have a look at what happened.

Important Questions:

So how cold did it get?
How does this compare to the temperature of the original ice mixture when it had no salt?
What kind of effect do you think the salt had on this experiment? Why?
What applications in the real world do you think the results of this experiment could lead to?