Question

When you immerse an empty plastic bottle in bucket of water it comes above the water surface why does this happen?

Answer 1

Answer:

Explanation:

Whenever  some substance floats on something that means the substance's density is lesser

if it sinks this means the density is more

the density of empty plastic bottle is less than water which makes it float

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Answer 2

Answer:

It happens because the density of empty plastic is much less than the comparison to water.

If the density of empty plastic would have been higher than it would sink probably