Question

How is water and honey denser then chalk and cotton even when solids are more denser then liquids??

Answer 1

Due to intermolecular force of attraction, the particles are closer to each other in solid than in liquids and gases. This results in compact arrangement of particles and make the matter as denser. So the density of solids > liquids > gases.
Cotton and chalk density is less than water and honey. The reason is water is having hydrogen bonding which is a strong bond and make particles to bond strongly. Honey is more viscous so that its also more denser than cotton or chalk. Cotton the particles are less compactly arranged and they have large intermolecular spaces. Chalk is an amorphous powder. So these two are less denser than water and honey.