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The Challenge: Predict the Weather

What is the best way to measure changes in temperature?

A thermometer will enable you to keep track of temperature to see if it is rising or falling. Our thermometer was rather similar in design to the barometer, but smaller. Here temperature changes caused the gas in the jam jar to expand, pushing the level of water in the tube up or down. Up meant warmer weather, down meant colder weather. Temperature gauge

Temperature gauge