Matter

Any thing that has mass and occupies space is called matter. The quantity or the amount of matter that a body contains is called its mass. Every thing around us is made up of matter.

States of matter

In nature,matter exists in three forms: solid, liquid and gas. Forms of matter are also called states of matter. There are other two states of matter in universe, i.e., plasma and bose-einestine condensate [BCE] state.

• Solid:

A solid has a definite shape and volume. It retains its shape unless it is acted upon by an external agent such as heat or a force.

For example: soil, sugar, wood, etc.

• Liquid:

A liquid has a definite volume but no definite shape. liquids take the shape of the container they are poured into.

For example: water, milk, juice, oil, etc.

• Gas:

A gas has neither a definite shape nor definite volume. most gases cannot be seen with the naked eye.

For example: oxygen, carbon dioxide, hydrogen, etc.