Atomic Theory Scientists and Their Contributions
Scientist (date) Contribution(s)
Empedocles
(492 BCE and 432 BCE)
All matter is composed of four elements: fire, air, water, and earth. The ratio of these four elements determines the properties of the matter

Democritus
(460 BCE – 370 BCE)
Matter can be cut into its constituent parts, these parts still possess all the properties of the original matter. He named this “atomos”.
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https://www.youtube.com/watch?v=xazQRcSCRaY
Turn it in on Moodle only!
After viewing the video and reading the 5 modules in Vision Learning, write a list of the scientists mentioned in the reading and summarize each scientist’s contribution to the Atomic Theory. (25 scientists)
Complete the table provided with the information as indicated above.