| Demonstrates: Water Pressure |
| Description: Floating and sinking demonstration (Cartesian diver). The tube is filled with water and air. When pressing the bottle, the additional water enters the test tube, thus increasing the average density of the system tube-water-air, resulting with negative buoyancy and the tube sinks.
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| Instructions: Squeze bottle to force diver down.
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| Items Used: 2 liter soda bottle filled with water and a dropper as diver. Notes: Also have a smaller version Math Description: None.
Size: 12" X 4" diameter Condition: Good Hazard: None.
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| Schematic:
None. Tech Specs:
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| History: |
