You observed the effect of pressure on the buoyancy of the Cartesian diver. What is a different variable that you could change the next time you repeat this experiment and that might also affect the buoyancy of the diver?

Answer:Density, pressure, buoyancy and volume are variables susceptible to change in the Sink or Float: A Buoyancy Experiment.

Explanation:

The properties of density, buoyancy, pressure and

volume, are all variables of Boyles Law.

Note experiments with pipette and the diver shows the below;

- The increase in pressure decreases the volume of air in the pipette and this causes the pipette to sink.

- Cartesian diver at the surface; to make the diver sink one will need to decrease the volume of the balloon by increasing the pressure in the bottle

- Cartesian diver; if you decrease the volume of the balloon and increase the pressure the diver will sink to the bottom. Much like a Buoyancy Compensation Device (BCD) allows a scuba diver to sink o

float

- For the diver to make it back to the surface you need to increase volume inside the balloon; this will decrease the pressure and the diver will come to the surface.