1. Take the glass rod thermometer and observe the temperature of the room. Where does the red liquid stop on the scale? 2. Put the thermometer in the cold water for a few seconds. Observe what happens to the red liquid. 3. Rub your hands together for a few seconds until they are nice and warm, then hold the thermometer at the end, covering the glass bulb. Observe what happens to the red liquid. 4. Record a video of you and your group members explaining what is happening to the particles in the red liquid as it gets hotter and cooler. Explain how the thermometer works.