Philosophers and Theories of Matter

Who proposed that all matter was made up of four elements: earth, air, fire, and water?

• Democritus

• Aristotle

• Empedocles

• John Dalton

What did Democritus propose about the nature of matter?

• Matter is made of four elements

• Matter is made of indivisible particles called "atomos"

• Matter is a combination of mystical substances

• Matter is composed of regular solids

Which philosopher disagreed with Democritus and believed everything was a combination of the four elements?

• Plato

• Empedocles

• Aristotle

• Robert Boyle

Who wrote the "Skeptical Chemist" and urged scientists to abandon the view that elements were mystical substances?

• Joseph Priestly

• Antoine Lavoisier

• Robert Boyle

• J.J. Thomson

What model did J.J. Thomson propose after discovering electrons?

• Planetary model

• Plum pudding model

• Atomic theory model

• Four elements model