Investigating Convection

Click Start Heating, then click Start Timing as soon as you see the purple dye begin to circulate in the cold (left) beaker.
When the dye completes one full circuit of the cold beaker, click Stop Timing and record the time and a short description of the current in the Cold row.
Click Reset, select Hot (80°C) using the temperature buttons, and repeat the heating and timing process for the right-hand beaker, recording its results in the Hot row.
Try selecting Warm (50°C) instead and re-timing the right-hand beaker. How does the circuit time change as the temperature increases?
Which beaker's convection current moved fastest overall, and what does this tell you about the effect of temperature on convection?

Water temperature	Time for dye to complete one full circuit (s)	Description of convection current
Cold
Hot