Fluids include both and?
Fluids versus liquids All liquids are fluids but not all fluids are liquids. The scientist (or engineer) will make that distinction but the non-scientist frequently doesn't. Fluids flow. They include liquids and gases. Liquids are a type of fluid that flows and takes the shape of its container but does not expand to fill its container. (Gases do that.) Liquid is the second state of matter, between solid and gas. Liquids do not expand, gases…
"A substance which flows" is called Fluids. OR "fluid deforms under an applied shear stress" Fluid means being able to flow freely.since both states of matter contains particles that are bonded securely to any other particle ,they can indeed flow and so are called fluids. fluid comprise a subset of states of matter and include liquid,gases and plasma All liquids and gases are examples of fluid.
Fluids are neither solids nor liquids. Fluids are a form between solids and liquids. Fluids donot exhibit a fixed shape like solids do and also are not free flowing as liquids are. Fluids, while maintaining their total volume can flow freely upto a certain extent. Though not very accurate, a fluid behaves some what like ketchup :)