As a general rule of thumb, the colder the matter is, the closer the atoms are to each other, and the warmer the matter is, the farther the atoms are apart.
Temperature plays an important role in how the atoms are aligned in a substance. Examples of plasmas include lightning, solar wind, the sun, fluorescent lights, and neon signs. Plasmas are able to carry an electrical current and generate magnetic fields.
The four elements were even used to described the four temperaments a person could have, and Hippocrates used the four elements to describe the four “humors” found in the body. Every visible thing was made up of some combination of earth, water, air, and fire. The elements were “pure” but could not be found in that state on earth. The idea that these four elements – earth, water, air, and fire – made up all matter was the cornerstone of philosophy, science, and medicine for two thousand years ( kids love to ask questions on the elements). He would be surprised to learn that they are in fact made up of many elements found on earth, and are so hot they could be said to be on fire all the time!) (Aristotle also suggested that there was a fifth element, aether, because it seemed strange that the stars would be made out of earthly elements. This theory was suggested around 450 BC, and it was later supported and added to by Aristotle. The ancient Greeks believed that there were four elements that everything was made up of: earth, water, air, and fire. What are the FOUR Elements? Science Lesson: Earth, Water, Air, and Fire