Advanced Science Primary 4 Energy

Study the setup below. After 30 minutes under the sun, which beaker of water will have a higher temperature?

A Beaker B (Wrapped in white paper)
B Beaker A (Wrapped in black paper)
C The temperature depends on the amount of sunlight, not the paper.
D Both will have the same temperature.
Show Worked Solution

Worked Solution

Step 1: Compare the variables (Black vs. White paper). Step 2: Recall that black surfaces are better absorbers of heat than white surfaces. Step 3: Beaker A will gain heat faster and reach a higher temperature.

Correct answer: Beaker A (Wrapped in black paper)

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