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- 2B20. Static Pressure
- 2B20.10 Pressure Independent of Direction A rubber membrane covers a thistle tube connected to a manometer. The assembly is inserted into a beaker of water and oriented in various directions.
- 2B20.15 Pressure Dependent on Depth Lower a small funnel covered with a rubber membrane attached to a manometer into a water filled vessel.
- 2B20.20 Dropping Plate Pressure holds a glass plate on the bottom of a glass tube inserted into a beaker of water until the pressure is equalized by another fluid poured into the tube.
- 2B20.40 Pascal’s Vases Tubes of various shapes are connected to a common water reservoir.
- 2B20.61 Two Syringes Two syringes of different size are hooked together and passed around the class for students to feel the pressure difference.
- 2B20.65 Garbage Bag Lift Lift a person sitting on a garbage bag by inflating with an air blower.
- 2B30. Atmospheric Pressure
- 2B35. Measuring Pressure
- 2B40. Density and Buoyancy
- 2B40.10 Weigh Submerged Block A weight hanging from a spring scale is lowered into a bucket of water. The scale reading is reduced by the amount of the buoyant force.
- 2B40.20 Archimedes’ Principle Show that the weight of the water displaced plus the weight of the block in the water is equal to the weight of the block before submerging.
- 2B40.26 Ship In Tub Add mass to an empty model boat and show water level.
- 2B40.29 Ship Buoyancy Demonstrates how the location of a weight on or off a boat affects the displacement of water.
- 2B40.57 Density of a soft drink Cans of regular Cola sink, diet Cola will float in a container of water. Add salt to the water and the regular Cola will rise.
- 2B40.59 Density Rod Hollow metal tube weighted to float in cold water but will sink in hot water.
- 2B40.72 Adding Salt Salt is added to a beaker of water to make a density ball float.
- 2B40.75 Pouring Glasses Pour sulfuric ether or carbon dioxide into one of two beakers on a platform balance. Shadow projection may be used to make it visible.
- 2B40.85 Density Balls in Beans Bury a 40 mm Ping Pong ball in a bowl of Pinto beans and then place a 40 mm steel ball on top. Shake the bowl and the Ping Pong ball will rise to the top while the steel ball will sink to the bottom.
- 2B60. Siphons, Fountains, Pumps
- 2B60.10 Hero’s Fountain An arrangement of reservoirs connected by tubes that forces a stream of water above the highest reservoir.
- 2B60.20 Siphon Start with two beakers half full of water and with a connecting hose full of water. Lift one beaker, then the other.
- 2B60.29 Chain Siphon. Bead Chain will siphon out of a cup
