
History of Atoms
Presentation
•
Science
•
9th Grade
•
Hard
Joseph Anderson
FREE Resource
4 Slides • 6 Questions
1
Open Ended
What is something interesting that happened over the holidays?
2
History of
the Atom
3
Why am I here? Why do I care?
Understand that science knowledge changes over time
Identify that there are tiny particles inside of an atom and these different particles explain why elements are different and why/how they react.
Today, we are learning about how we have come to know what an atom is and what goes on inside them.
This is important for us to know so that we can:
4
5
Multiple Choice
Who was the first person to come up with the idea of the “atom?”
Bohr
Dalton
Democritus
Aristotle
6
Multiple Choice
J.J. Thomson discovered which atomic particle?
Nucleus
Proton
Neutron
Electron
7
Multiple Choice
What occurred during Rutherford’s experiment that lead to his discovery of the nucleus?
The particles all went right through the gold foil
All of the particles bounced off the gold foil
Most of the particles went through the gold foil but a few bounced off at large angles
Half of the particles bounced off the gold foil and half went through it
8
Multiple Choice
Who developed the "chocolate chip cookie" model of the atom?
Ernest Rutherford
J.J. Thomson
John Dalton
Niels Bohr
Werner Heisenberg
10
Reorder
Exit Card Question
Place the scientists who developed the different models of the atom in order from earliest to most recent.
Democritus
Dalton
JJ Thomson
Rutherford
Bohr
What is something interesting that happened over the holidays?
Show answer
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