Yes, plasma is a state of matter.

States of Matter:

There are four main states of matter: solid, liquid, gas, and plasma. Each state has its own unique properties, which are determined by the arrangement of particles and the amount of energy they possess.

Solid:
In a solid, particles are tightly packed together in a fixed arrangement. They vibrate in place and have a definite shape and volume.

Liquid:
In a liquid, particles are close together but can move past each other. They have a definite volume but take the shape of their container.

Gas:
In a gas, particles are far apart and move freely. They have no definite shape or volume.

Plasma:
In a plasma, particles are highly energized and ionized. They are made up of positively charged ions and negatively charged electrons. Plasmas are similar to gases in that they have no definite shape or volume, but they are different in that they can conduct electricity and respond to magnetic fields.

Properties of Plasma:

Plasmas are found naturally in lightning, flames, and the sun. They are also used in many industrial applications, such as welding, cutting, and lighting.

Some unique properties of plasma include:

- Conductivity: Plasmas can conduct electricity because they contain charged particles.
- Response to magnetic fields: Plasmas can be manipulated with magnetic fields because of their charged particles.
- Brightness: Plasmas can emit light, which makes them useful in lighting applications.
- High energy: Plasmas are highly energized and can react with other materials in ways that other states of matter cannot.

Conclusion:

In conclusion, plasma is a state of matter that is highly energized and ionized. It is similar to gases in that it has no definite shape or volume, but it is different in that it can conduct electricity and respond to magnetic fields. Plasmas are found naturally in lightning, flames, and the sun and are used in many industrial applications.

Actually there are 5 states of matter. They are solid, liquid,gas,plasma, Bose Einstein condenser.