Order matters!

The order of magnitude of the density of nuclear matter is 10^(4) kg m^(-3)

Sohan took an unknown matter in to a beaker. The matter took the shape of the beaker. Later he transferred the matter into a measuring cylinder. The matter took the shape of the container but its volume remained the same. What is the state of that matter?

Grey matter is

Is it possible to create matter ?

The order of magnitude of the density of nuclear matter is=

A mathc box of 5 cmxx5cmxx1cm dimensions is filled with nuclear matter. Its weight is in the order of

What is composition of grey matter and white matter?