3. Almost everything around us is matter. It appears in
different forms or phrases. Matter has its composition and
characteristics. The unique characteristics of each kind of
matter are based on the kind of particles it is made up.
Throughout the history, man has searched for the particle of
matter, the atom. Since early times, they made a way to
classify matter. Matter is classified as pure substance and
mixture. Pure substances are classified into elements and
compounds. In this lesson, you will learn what makes up the
classification and characteristics of matter.