This document discusses the properties of matter. It defines matter as anything that takes up space and has mass. Matter is made up of tiny particles too small to see. Examples of matter include people, houses, trees, cars, computers, paper, air, water, and everything. The document discusses physical properties like shape and volume used to describe the three states of matter: solids, liquids, and gases. Solids have a definite shape and volume, liquids take the shape of their container, and gases fill their entire container and have no definite volume. Methods for finding the volume of solids and liquids are also presented.