gas and liquid
gas
No
Matter.
Matter is always in the form of particles (atoms, molecules, etc.). For it to flow, the atoms have to move from one place to another. Energy can move from some matter to other matter without moving the matter. Example: an ice cube warming up but not yet melting has energy flowing into it, but matter is not flowing. When it starts to melt, matter (in the form of water molecules) flows out.
Liquid
yes indeed solids can flow as well. all states of matter are fluids.
Matter.
liquids
heat flow and waves
When an animal eats a plant as food, both energy and matter are passed from one organism to another in a food web. Unlike the flow of energy in a food web, however, the flow of matter is not one way. Matter cycles within a community.
The three basic states of matter are: solid, liquid, and gas.
Energy flow refers to the transfer of physical energy from one place to another. This often involves the flow of fluid.
Currents are a "flow" of water from one place to another.