To find out if the cell is a plant cell, the student should look for a square shape in each cell. The cells are put together with their square like shape so it may look like a brick wall depending on the cell.
To find out if the cell is an animal cell, the student should look for more rounded shapes. Usually, animal cells are rounded unlike the plant cell because they do not have a cell wall.
Viscosity refers to the speed at which a substance can flow (i.e. the thickness of the substance/its ability to flow). I think that's the closest the English language gets.
