Density Manometer: Visualizing Archimedes' Principle

Visualize and measure fluid pressure as depth increases

Make fluid pressure visible and measurable with the Density Manometer, a visually impactful, quantitative demonstration of how pressure increases with depth in a liquid. Students immerse a hollow drum covered with a rubber membrane into water and observe how increasing depth produces a clear, corresponding change in the connected manometer. This direct cause-and-effect setup helps students link physical depth to pressure readings they can see, measure, and analyze—turning abstract fluid concepts into concrete understanding.

Why Teachers Love the Density Manometer

• Visual and quantitative: Students see pressure changes directly on the manometer as depth changes.
• Clear cause-and-effect: The membrane-and-manometer system makes pressure–depth relationships intuitive.
• Multi-concept learning: Supports pressure, buoyancy, and Archimedes’ principle in one setup.
• Reliable classroom demo: Produces consistent, repeatable results for demonstrations or guided inquiry.