TEKS: 5.6D The student is expected to illustrate how matter is made up of particles that are too small to be seen such as air in a balloon
A solid does not flow.
A liquid flows and changes shape easily, but its volume does not change.
A gas flows easily and takes the shape and volume of its container.
Solids have definite shape and volume. Their particle structure is rigid and stiff. They vibrate very slowly. Solid particles are tightly packed and move very little, which is why solids keep their shape and volume.
Liquids have a definite volume but no definite shape. This is because the particles in liquid vibrate faster than those in a solid. Liquids keep their volume, but they change shape to fit their container.
Gases have no definite shape or volume. Meaning they fill up what ever space it is in. Gas particles move very fast and spread out, which is why gases expand to fill any available space,