Question

recall and write the definition of the review vocabulary term
viscosity

Explanation:

Viscosity is a property of fluids (liquids and gases) that describes their resistance to flow. It is related to the internal friction within the fluid. For example, honey has a high viscosity (flows slowly) compared to water which has a low viscosity (flows more easily).

Answer:

Viscosity is the resistance of a fluid (liquid or gas) to flow, which is due to the internal friction between its layers.