Q:

How do you make things float?

A:

Quick Answer

To make an object float, find a sealed container, attach the container to the object, and place the object in a fluid. Objects float when they are positively buoyant, or less dense than the fluid in which they are sitting. To float, objects simply must have a greater ratio of empty space to mass than the fluid.

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Full Answer

  1. Locate a sealed container

    Find a container that has empty space. To float, the combination of the object and the container must have a greater ratio of empty space to mass than the fluid, so choose the container size accordingly. Ensure that the container is sealed so that fluid cannot enter it.

  2. Attach the container

    Fasten the container to the object securely.

  3. Place the object in the fluid

    Put the combined object and container in the fluid. If enough empty space exists in the securely fastened and sealed container, the object floats.

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