Anything that occupies space and has mass defines matter. Determine and differentiate the three states of matter.

• A. The three states of matter are solid, liquid, and gas.
  A solid has a fixed volume and definite shape that does not change when placed in a container.
  A liquid has a fixed volume but an indefinite shape. It takes the shape of the container where it is contained.
  A gas has an indefinite volume and indefinite shape. It expands to fill the volume and take the shape of the container where it is contained.
• B. The three states of matter are solid, liquid, and gas.
  A solid has a fixed volume but an indefinite shape. It takes the shape of the container where it is contained.
  A liquid has a fixed volume and definite shape that does not change when placed in a container.
  A gas has an indefinite volume and indefinite shape. It expands to fill the volume and take the shape of the container where it is contained.
• C. The three states of matter are solid, liquid, and gas.
  A solid has a fixed volume but an indefinite shape. It takes the shape of the container where it is contained.
  A liquid has an indefinite volume and indefinite shape. It expands to fill the volume and take the shape of the container where it is contained.
  A gas has a fixed volume and definite shape that does not change when placed in a container.
• D. The three states of matter are solid, liquid, and gas.
  A solid has a fixed volume and definite shape that does not change when placed in a container.
  A liquid has an indefinite volume and indefinite shape. It expands to fill the volume and take the shape of the container where it is contained.
  A gas has a fixed volume but an indefinite shape. It takes the shape of the container where it is contained.

Answer: (A)