Khan Academy
Khan Academy: Cie Chromaticity (Practice)
This is a 6-problem quiz/practice locating the pure color in a diagram of the CIE color space.
Khan Academy
Khan Academy: Buddhist Text About the Bodhisattva Manjushri
This Tibetan manuscript is one of the oldest objects in the museum's Tibetan collection. It consists of twenty-two loose pages. The text is written in U-chen script, in pure gold ink, which has been applied on a ground of lapiz lazuli...
Khan Academy
Khan Academy: Classify Complex Numbers
Classify numbers as real, pure imaginary, or complex.
Khan Academy
Khan Academy: Multiply Complex Numbers (Basic)
Multiply complex numbers by single terms that are either real or pure imaginary.
Science Buddies
Science Buddies: Taking Off on a Tangent
This is an interesting geometry project that goes back to the time of Archimedes, the famous Greek mathematician. You can combine this mathematical project with computer science and take this ancient problem into the twenty-first century...
Science Buddies
Science Buddies: Thinking in (Semi )Circles: The Area of the Arbelos
The arbelos is the white-shaded region between the three semicircles in the illustration at right. In this project, you'll prove an interesting method for determining the area of the arbelos.
City University of New York
Brooklyn College: Medelian Genetics
This set of seven activities will proved a thorough review of Mendel's work. The interactive experiments are easy to follow and drive home the concepts.
Scholastic
Scholastic: The Progresssive Era
This Grolier On-line Encyclopedia article hits the main points of the Progressive Era stretching from the 1890s until just after the end of World War I.
Other
North Dakota State: Mendel's First Law (Law of Segregation)
This resource explains Mendel's first law (Law of Segregation) in detail. Includes Mendel's original experiments with results and conclusions.
Cold Spring Harbor Laboratory
Dna From the Beginning: Genes Don't Blend
Learn how Gregor Mendel's study of plants increased scientific knowledge regarding genetic traits.
University of Virginia
Miller Center at Uva: u.s. Presidents: Theodore Roosevelt: Domestic Affairs
Read about the progressive legisltion supported by President Theodore Roosevelt in his attempt to balance business interests with the public good. Read about his actions concerning conservation, government regulations, and business-labor...
Nobel Media AB
The Nobel Prize: Wendell Stanley Biographical
This is a brief Nobel E-Museum biography on Wendell Meredith Stanley, the scientist and co-recipient of the 1946 Nobel Prize in Chemistry.Read about his education, as well as his contributions to various scientific studies through which...
CK-12 Foundation
Ck 12: Physical Science: Elements
[Free Registration/Login may be required to access all resource tools.] Explores elements and their different properties, the history of elements, and how atoms relate to elements.
That Quiz
That Quiz: Practice Test: Inequlity
This resource allows users to test their knowledge of inequalities and using fractions.
Other
University of Leicester: Elliptical Galaxies
Provides a general overview of elliptical galaxies, including a look at what defines an elliptical galaxy, what determines its shape, and it's physical nature.
Independence Hall Association
U.s. History: Muckrakers
Sometimes a pen can be wielded more lethally than a sword. Read about the brave muckrakers who exposed corruption and injustice in government and business. These journalists attacked different areas, but the result was an introduction to...
Grade Saver
Grade Saver: Tess of the D'urbervilles by Thomas Hardy
This is an online study guide/notes for the novel Tess of the D'Urbervilles by Thomas Hardy including author information, literary elements, chapter-by-chapter summaries/notes, study questions, and analysis.
Khan Academy
Khan Academy: Ap Us History: 1890 1945: The Age of Empire: The Progressive Era
The Progressive Era from the 1890s to the 1920s evolved as a response to the negative effects of industrialization. Reforms that emerged provided protections for workers and consumers and gave women voting rights. Backlash against the...
Khan Academy
Khan Academy: Ap Us History: 1890 1945: The Presidency of Theodore Roosevelt
Looks at Theodore Roosevelt's actions and accomplishments as president from 1901-1909. Discusses his policies in Latin America and the construction of the Panama Canal, and his Square Deal program where he went out of his way to...
Khan Academy
Khan Academy: Ap Us History: 1890 1945: The Age of Empire: Muckrakers
Discusses the muckraking journalists and novelists who were at the forefront of movements pushing for stronger protections for workers and consumers. Their work led to the passage of several important pieces of legislation. Includes...
Library of Congress
Loc: Progressive Era to New Era, 1900 1929
This website defines and explores the Progressive Era and various aspects of American society during that period of history. It contains fairly simple text and several images.
American Chemical Society
Middle School Chemistry: Changing State: Evaporation
Learn how substances change from a liquid to a gaseous state in the process of evaporation.
The Wonder of Science
The Wonder of Science: Ms Ps1 1: Atomic Composition Model
A collection of lesson plans for helping students understand atomic composition. Site uses work samples, phenomena, assessment templates, and videos to plan lessons to describe the atomic composition of simple molecules.
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