Simply because the individual molecules are too small to be seen without a microscope.
An individual point particle in the standard model is described in string theory as a mode of vibration of a string. If for some reason the mode of vibration of the string changed, the particle would change to a different one.
" a sugar" - really -where have you seen "a sugar"
A particle is an atom which cant be seen by the naked human eye, everything is made up of: in solids; gasses and liquids. Each atom contains electrons, protons and neutrons, which is what gives each particle its properties. Solids tend to have more compact particles where as gasses have less.
The past participle of "see" is "seen." For example: "I have seen that movie before."
The simple answer is that the solid particles of the sugar crystals touch and bump into the water molecules and the water molecules melt the crystals easy as and im only 11! and im already at y11 GCSE level in Chemistry!
Looked is the past participle of look.
The director was infuriated, having seen the particle of dirt on the camera lens when re-watching the difficult-to-film scene.
100 um
there habit is that it live were it cant be seen
The movement of water molecules is too small and fast to be seen with the naked eye. Additionally, the individual molecules are small and transparent, making them difficult to observe even under a microscope.
they can, i have seen them do it.
Blind