Answer is: oil has the highest viscosity. The viscosity of a fluid is
a measure of its resistance to
gradual deformation by tensile stress and shear stress. The dynamic viscosity of water is 0,890 cP (centipoise) at about 25 °C. The dynamic viscosity of acetone is 0,306 cP at about 25 °C. The dynamic viscosity of olive oil for example is 81 cP at about 25 °C.
