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Matter is made from small particles and they are in constant motion. They were conducting the first attempts of chemistry.
https://healthresearchfunding.org/alchemists-atomic-theory-explained/ -
Develop a definition of an element. If that any substance that can be broken into 2 or more substances is not an element).
https://sites.google.com/site/robertboyletheskepticalchemist/atomic-theory-contribution -
Sample Fact Link
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Everything is composed of atoms, which are the indivisible building blocks of matter and cannot be destroyed. All atoms of an element are identical. The atoms of different elements vary in size and mass.
https://courses.lumenlearning.com/introchem/chapter/john-dalton-and-atomic-theory/#:~:text=Dalton's%20atomic%20theory%20proposed%20that,of%20differing%20size%20and%20mass. -
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