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PPT
Other

World of Teaching: White Blood Corpuscles (Power Point)

For Students 9th - 10th
This is an excellent PowerPoint presentation, with lots of graphics, on white blood cells. It clearly explains the different types of white blood cells and how they are formed.
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Website
Other

American Institute of Physics: Discovery of the Electron

For Students 9th - 10th
Use this resource to read about the "Experiments by J.J. Thomson in 1897 [which] led to the discovery of a fundamental building block of matter." This exhibit is organized into several sections, including: "Mysterious Rays" and "1897...
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Unit Plan
Frostburg State University

General Chemistry Online: Atoms & Ions

For Students 9th - 10th
This site from the General Chemistry Online of the Frostburg State University provides a review of the history of atomic theory, the discovery of the electron, and the discovery of the nucleus. Details on weighing atoms, ion charges,...
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Website
Other

Isaac Newton

For Students 9th - 10th
A page at the Isaac Newton (1642-1727 CE) Institute for the Mathematical Sciences website. This page, the contents of which come from the Microsoft Encarta encyclopedia, describes the upbringing, the education, the scientific and...
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Website
University of Maryland

Optics Highlights: Optics, Electromagnetic Waves, Quanta

For Students 9th - 10th
Part of an anecdotal history on optics and the study of light. Extremely thorough treatment of the scientific evidence which led scientists to believe in the particle nature of light. Includes a short biographical sketch and discusses...
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Handout
Nobel Media AB

The Nobel Prize: The Dual Nature of Light as Reflected in the Nobel Archives

For Students 9th - 10th
This article discusses the historical figures who contributed to our understanding of the nature of light, x-rays, Quantum ElectroDynamic (QED) theory, and so on.
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Handout
Stanford University

Stanford Encyclopedia: j.j. Thomson and the Electron

For Students 9th - 10th
This site from the Stanford Encyclopedia of Philosophy offers a historical review of the discovery of the electron by J. J. Thomson and how he came to his conclusions performing experiments witha cathode ray tube.
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PPT
Frostburg State University

General Chemistry Online: Discovery of the Electron

For Students 9th - 10th
This site from General Chemistry Online of the Frostburg State University provides an explanation of Thomson's discovery of the electron using a cathode ray tube and also his plum cake model of the atom.