Take a small cotton ball and place it in a tumbler/ bowl filled with water. Observe it for at least $10$ minutes. Will it float or sink in water and why?

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Solution

Explanation:
When the cotton ball is placed in water it will float at first.
After that, the cotton ball will start absorbing water due to capillary action.
The air in the cotton ball will be replaced by water
The cotton ball will become heavy by absorbing water and will ultimately sink.
Hence, initially, the cotton ball will float, but it will sink after a few moments.

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Take a small cotton ball and place it in a tumbler/ bowl filled with water. Observe it for at least 10minutes. Will it float or sink in water and why?

Take a small cotton ball and place it in a tumbler/ bowl filled with water. Observe it for at least $10$ minutes. Will it float or sink in water and why?