Comparing the melting times of ice cream.
Child: Ice cream!
What makes ice cream melt??
Narrator: This is a good opportunity for a test, Molly鈥
Don鈥檛 forget to make it fair. Everything needs to be the same, so we need the same type of ice cream, the same quantity and you both need to hold it for the same amount of time!
Now we just need one thing different so we can compare what difference it makes.
Good thinking, if it鈥檚 hotter, does ice cream melt faster?
When you are testing something, you need to make sure it is a fair test. To do this everything should be the same except the thing you are testing.
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