Website
Khan Academy

Khan Academy: Dalton's Atomic Theory

For Students 9th - 10th
An article describing Dalton's atomic theory. Learn how this theory was the first attempt to describe a fundamental part of matter, atoms. Article also discusses where the theory is incorrect based on the knowledge we have today.
Unit Plan
CK-12 Foundation

Ck 12: Evolution of the Atomic Model

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Students take a closer look at how our understanding of the atom has evolved over time.
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Other

A Short History of the Atom

For Students 9th - 10th
A classroom wiki where students present profiles of scientists who developed models of the atom or who contributed to the understanding of atomic theory. Covers Democritus, Aristotle, John Dalton, J.J. Thomson, Ernest Rutherford, Marie...
Handout
Science Struck

Science Struck: Plum Pudding Model

For Students 9th - 10th
Describes J.J. Thomson's theory of atomic structure, called the 'Plum Pudding Model,' and how it was disproved by Ernest Rutherford.
Online Course
Cosmo Learning

Cosmo Learning: Ap Chemistry With Chemguy

For Students 9th - 10th
Need to review a topic for AP Chemistry? This site features a collection of video lectures covering the curriculum of AP Chemistry. The lectures are broken up by topics and vary in length. Lectures cover thermodynamics, bonding,...
Unit Plan
University of Wisconsin

The Why Files: Learning About Neutrinos

For Students 9th - 10th
A learning resource to understand what neutrinos are and their importance to science.
Article
University of Houston

University of Houston: Engines of Our Ingenuity: John Dalton's Notation

For Students 9th - 10th
This is part of a small radio show at the University of Houston. It talks about how John Dalton came up with his version of chemical notation, and how it differs from our version of it today. It is available in audio form also.
Lesson Plan
American Chemical Society

Middle School Chemistry: Protons, Neutrons, and Electrons

For Teachers 9th - 10th
Investigate why a charged object is attracted or repelled by another charged object. Explore the concept that the attraction between positive protons and negative electrons holds an atom together.
Unit Plan
Other

Crocodile Clips: Absorb Chemistry: History of the Atom

For Students 9th - 10th
A tutorial that presents models of the atom proposed by John Dalton, J.J. Thomson, Ernest Rutherford, and Niels Bohr. Each is supported by an animated illustration. Includes comprehension questions and a quiz at the end.
Handout
Exploratorium

Exploratorium: Cern: Experiments With Antimatter

For Students 9th - 10th
A description of the two primary experiments conducted at CERN on antimatter: ASACUSA, an attempt to form "Atomcules," using antiprotons; and ATHENA, an experiment to compare the properties of hydrogen and antihydrogen.
Handout
Physics4kids

Physics4 Kids: Modern Physics: Looking Into Atoms

For Students 6th - 8th
Get an inside look the subatomic particles of atoms.
Handout
University of St. Andrews (UK)

University of St. Andrews: Insulators

For Students 9th - 10th
The nature of insulators is described at the atomic level. Band gap theory is used to explain what distinguishes insulators from conductors.

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