Question

A iver is able to cut through water in a swimming pool.which property of matter does this observation show?

Answer 1

it shows the property of intermolecular spaces of matter

Answer 2

The property displayed in this question is that there is a gap or space between them. This space is usually maximum and highly accumulated by 'gases' and is minimum in 'liquids' as the particles only slide over each other. So, it is simply impractical for one to cut through a solid easily but an iver can do it easily through the water in a swimming pool. This implies the intermolecular space of matter concept. 

I hope this helped. Thanks for encouraging active learning and asking questions!