Changes in Matter

Matter is anything that takes up space and has weight.

•Matter has three forms.

•Matter can be a solid, a liquid, or a gas.

•Matter can be described by its properties.

•Matter is made up of tiny particles called atoms.

The particles in a liquid are in close contact with one another, but the arrangement of particles in a liquid is not rigid or orderly. The particles in a liquid are in close contact with one another, but the arrangement of particles in a liquid is not rigid or orderly. Because the particles in a liquid are free to flow, a liquid takes the shape of the container in which it is placed. The particles in a liquid are in close contact with one another, but the arrangement of particles in a liquid is not rigid or orderly. However, the volume of the liquid doesn’t change as its shape changes.

Like a liquid, a gas takes the shape of its container.But, unlike a liquid, a gas can expand to fill any volume. A gas is a form of matter that takes both the shape and volume of its container. The particles in a gas are usually much farther apart than the particles in a liquid. The particles in a gas are usually much farther apart than the particles in a liquid.Because of the space between particles, gases are easily

compressed into a smaller volume.