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ARC-Challenge / Mercury_405876 / Students want to raise the temperature of water in a glass jar. The jar is on a…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

Students want to raise the temperature of water in a glass jar. The jar is on a table in full sunlight. The fastest way to increase the temperature without using a hot plate is to place

choices

  • a straw in the water.
  • clear plastic wrap around the glass.
  • a thermometer in the water.
  • black material around the glass.

Discussion

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Source and history

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