What did Aristotle do for atomic theory?
In Aristotle’s time, atomists held that matter was fundamentally constructed out of atoms. These atoms were indivisible and uniform, of various sizes and shapes, and capable only of change in respect of position and motion, but not intrinsic qualities.
What did Plato say about atoms?
Plato (c. 427 – c. 347 BCE), if he had been familiar with the atomism of Democritus, would have objected to its mechanistic materialism. He argued that atoms just crashing into other atoms could never produce the beauty and form of the world.
What did Aristotle and Plato believe?

In Philosophy Plato believed that concepts had a universal form, an ideal form, which leads to his idealistic philosophy. Aristotle believed that universal forms were not necessarily attached to each object or concept, and that each instance of an object or a concept had to be analyzed on its own.
What did Aristotle and Plato think of Democritus?
Aristotle disagreed with Democritus and offered his own idea of the composition of matter. According to Aristotle, everything was composed of four elements: earth, air, fire, and water. The theory of Democritus explained things better, but Aristotle was more influential, so his ideas prevailed.
How did Plato contribute to the atomic theory?
Plato (427 B.C.E) Plato introduced the atomic theory in which ideal geometric forms serve as atoms, according to which atoms broke down mathematically into triangles, such that the form elements had the following shape: fire (tetrahedron), air (octahedron), water (icosahedron), earth (cube).
What is the main difference between Plato and Aristotle?

The main difference between Plato and Aristotle philosophy is that the philosophy of Plato is more theoretical and abstract in nature, whereas the philosophy of Aristotle is more practical and experimental in nature.