Question 15
A lava lamp uses the difference in density between paraffin wax and a surrounding liquid. When heated, the wax becomes less dense and rises. As it cools, it becomes denser and sinks. This cycle causes the wax globules to continuously move up and down inside the lamp.
Tammy constructed a halite fountain as shown in the diagram below. There are two fluids in the fountain — coloured water and a solution containing the halite, sodium chloride.
Why was it important to slowly fill bottle B with the sodium chloride solution? What might have happened if Tammy were to fill it too quickly?
Tammy constructed a halite fountain as shown in the diagram below. There are two fluids in the fountain — coloured water and a solution containing the halite, sodium chloride.
Why was it important to slowly fill bottle B with the sodium chloride solution? What might have happened if Tammy were to fill it too quickly?
