20. Static Pressure

2B20.1 Pressure vs. Depth 2B20.2 Cylinder with Dropping Plate 2B20.3 Pascal's Vases

30. Atmospheric Pressure

2B30.1 Vacuum Lift 2B30.15 Crush a Can with Atmospheric Pressure 2B30.30 Magdeburg Hemispheres 2B30.70 Vacuum Bazooka

40. Density and Buoyancy

2B40.1 Archimedes' Experiment (Buoyancy) 2B40.2 Cartesian Diver 2B40.3 Alternate Cartesian Diver 2B40.4 Weight of Air

60. Siphons, Fountains, and Pumps

2B60.35 Intermittent Siphon 2B60.60 Hydraulic Ram (Water Hammer) 2B60.70 Archimedes' Screw 2B60.75 and 2B60.80 Hydraulic Lift Pump and Force Pump