Measuring Temperature You should be taking Cornell-­‐style notes… What is temperature? *  Temperature is a physical property that quantitatively expresses “hot” and “cold.” *  Temperature is measured using a thermometer. *  The SI unit for temperature is degrees Celsius (°C). How do I read a thermometer? *  Know what scale you are working with. *  Be patient…it may take a minute for the thermometer to stabilize. *  Measure the temperature to the nearest degree. How do I read a thermometer? 31 °C -­‐11 °C Let’s practice… * What temperature is this thermometer reading? Let’s practice… * What temperature is this thermometer reading? 21 °C