a substance that is liquid or gas that can flow and change its shape
bcoz it wants to fly to America
The most common method of classifying fluids are through a measure of viscosity; how close to being soilid. Peanut butter would have a very high viscosity, where gasoline or water are very low....
when it freezes, it hardens.
Because of their looseolecular bonds they do not form rigid structures, but instead flow to fill the shape of their container.
vescosity