Using the Scientific Method in your Science Fair Project. Mandy Padgett Heritage Christian School. Let’s Learn about the Scientific Method!! . Question. Hypothesis. Prediction. Testing. Results. Question.
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Heritage Christian School
Why do highway trucks pour sand on icy roads in the winter?
I know that salt is used to melt ice and I think that sand is used for the same reason.
If my hypothesis is true, an ice cube with sand on it will melt faster than a bare ice cube.
Materials: Sand, ice cube, and a watch
Steps: I sprinkled sand on one ice cube and left the other bare. I timed how long it took for each ice cube to melt.
Data: Each cube took one hour to melt.
My hypothesis was wrong because the sanded ice didn’t melt faster. They must use sand for a different reason.