Siti poured hot tea into four cups made of different materials. Which cup will keep the tea hot for the longest time?
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Worked Solution
Step 1: To keep tea hot, we need a poor conductor of heat (insulator).
Step 2: Metal is a good conductor; plastic, ceramic, and glass are poor conductors.
Step 3: Plastic is typically the best insulator among the choices given.
Step 4: Final Answer: A plastic cup.
Correct answer: A plastic cup
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