Two identical beakers, X and Y, were wrapped in different materials and placed in the sun. After 30 minutes, the water in Beaker X was hotter. What could be the materials used?
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Worked Solution
Step 1: Darker colors absorb heat better than lighter colors.
Step 2: Beaker X is hotter, so it must have absorbed more heat from the sun.
Step 3: Therefore, X is likely wrapped in a dark material like black cloth.
Correct answer: X: Black cloth; Y: White cloth
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