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High school biology

Course: High school biology > Unit 1

Lesson 1: Biology and the scientific method
Science
High school biology
Biology foundations
Biology and the scientific method
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Experimental design and bias

Google Classroom

Problem

A biology class wanted to study the effect of different materials on the melting rate of ice. They placed pieces of ice, each with a mass of 10g, onto trays. Group 1 was covered in plastic, group 2 was covered in paper, group 3 was covered in aluminum, and group 4 remained uncovered.
Each piece of ice was allowed to melt for 15 minutes. Then final mass of the ice, minus the melted water, was recorded at the end of the experiment.
Which of the following is the control group in this experiment?
Choose 1 answer:
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