ICAS Science Practice Questions - International Competitions And Assessments For Schools - Science Exam

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A student records the temperature of a cup of hot water every two minutes and plots the results on a line graph. The line falls quickly at first, then more slowly, and finally becomes almost flat. What does the flattening of the line most likely show?

The water nears room temperature The thermometer has stopped working completely The water gains heat from the surrounding air The water is starting to boil again at 100 degrees Celsius

Correct Answer:

The water nears room temperature

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