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Product 13450

By: The Flinn Staff

In the Bottomless Bottle and Pascal’s Law Demonstration Kit physical science and physics, dramatically demonstrate Pascal’s law of equal pressure and the incompressibility of fluids. 

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Use this old parlor trick to dramatically demonstrate Pascal’s law of equal pressure and the incompressibility of fluids. Fill a glass bottle with water. Firmly grip the neck of the bottle, give the top of the bottle a whack with a rubber mallet and—Pop! The bottom of the bottle drops out. The small force applied to the water in the narrow neck of the bottle becomes a much larger force on the bottle’s wider bottom—Pascal’s law in action! The force is large enough to break the glass at the base of the bottle. Includes demonstration instructions and enough glass bottles to perform the demonstration twelve times.

Concepts: Pascal’s law, incompressibility of liquids, pressure.
Time Required: 15 minutes
Note: Protective gloves are recommended when performing this demonstration and are available separately.

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Developing and using models
Constructing explanations and designing solutions
Using mathematics and computational thinking

Disciplinary Core Ideas

MS-PS1.A: Structure and Properties of Matter
MS-PS3.A: Definitions of Energy
MS-PS3.B: Conservation of Energy and Energy Transfer
MS-PS3.C: Relationship between Energy and Forces
MS-PS4.A: Wave Properties
HS-PS3.A: Definitions of Energy
HS-PS3.B: Conservation of Energy and Energy Transfer

Crosscutting Concepts

Systems and system models
Energy and matter
Cause and effect

Performance Expectations

MS-PS2-2: Plan an investigation to provide evidence that the change in an object’s motion depends on the sum of the forces on the object and the mass of the object.
MS-PS4-2: Develop and use a model to describe that waves are reflected, absorbed, or transmitted through various materials.
HS-PS3-2: Develop and use models to illustrate that energy at the macroscopic scale can be accounted for as a combination of energy associated with the motion of particles (objects) and energy associated with the relative positions of particles (objects).
HS-ESS2-5: Plan and conduct an investigation of the properties of water and its effects on Earth materials and surface processes.