when we add salt or sugar to water the particles mix up and the water level does not rise up.
but when we add squash to the water the water level rise and why the particles does not mix with water so that the water level remains the saim
It is true that on adding salt or sugar to water, the water level does not rise, whereas in case of adding squash to it, there is a rise in the level of the resultant mixture.
This is due to the fact that in case of salt in water, there is a formation of homogeneous solution because the molecules of water get attached to the voids in the crystal lattice of the salt/sugar, so, there forms a strong bonding between the molecules of salt/sugar and water which results in its homogeneity.
Whereas, In case of squash and water, the water molecules do not get fit in the lattice voids which results in weak attachment forces between the molecules of both types. This further results in the formation of heterogeneous solution. (Note - On keping the mixture of squash and water for longer time, because of the heterogenous nature, the two layers separate out.)