What is matter? Matter is anything that has mass and can take up space. For example, matter is anything that we can touch, feel, and see. What is the state of matter? There are three state of matter: solid, liquid, and gas.
Solid - Has a definite shape ad volume. Solid Behavior: Atoms collide with their neighbor, this mean they are touching. Liquid - Does not have a definite shape, but it does have a definite volume. Liquid Behavior: Atoms slide against each other. They move in a random way, but they are still sliding. Gas - Does not have definite shape or volume. Gas Behavior:Atoms in the gas are all spread apart. They move in a straight line, until it bumps into something and move in a different way.
How are changes in temperature and particle motion related to the physical states of matter? The changes in temperature will affect the particle (atoms) motion. Because each states of matter have different amount of thermal energy that will affect the atoms movement. Since the more thermal energy that the atoms have, the more it will move.
Solid - Have little thermal energy that is why the atoms don't even move. Liquid - Have a bit more thermal energy that is why the atoms are able to slide. Gas - Have a lot thermal energy, as a result, the atoms move all over the place.