What is plasma state? Md. Saifur Rahman The fourth state of matter is called the plasma state. Plasma is the ionized gas at a very high temperature. It is formed at a few thousand degrees of temperature. It has no definite shape and volume like gases.You may likeDo I need car insurance?What is car insurance?How could I get cheaper car insurance?What is auto insurance?Why Adulterant food is the barrier to sound health?What are the producers?What are food preservatives?What is food chain?What is tertiary consumer?