Is there a small object I can make float and sink and float in a small tank? I am doing a project and I need help please help!What object can I make that floats in water then sinks and floats again?
Please google ';cartesian diver';. That is what you need.
Basically, a small bottle- like object is weighted 'til it just floats in a jar of water, the open end down.
A membrane (balloon rubber?) is fixed with a rubber band over the top of the jar. It must make an airtight seal.
Pressing on the balloon compresses the air above the water. It also compresses the air in the little bottle, allowing water to enter it. The bottle sinks.
Releasing the pressure allows the air in the bottle to expand again, and it rises back to the surface.What object can I make that floats in water then sinks and floats again?
you can make a small plastic container filled with oxygen, then press a button to open a latch that will release some bubbles on the top so it sinks...I don't know if that would work actually haha
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