Wolfram Research
Wolfram Math World: World's Most Extensive Mathematics Resource
MathWorld provides a huge mathematics encyclopedia detailing the concepts of geometry, algebra, calculus, discrete math, number theory, and other math topics--complete with formulas, diagrams, examples, and references for thorough...
US National Library of Medicine
Medline Plus: Poison Ivy, Oak, Sumac
This encyclopedia article explores what an allergy to poison ivy, oak and sumac is. Content address precautions, symptoms, and first aid. Pictures are also provided.
New Advent
Catholic Encyclopedia: The Most Blessed Trinity
This site answers some questions about the trinity. In doing so, it explains the Trinity in whole. It is a Catholic web site, but can be used for most Christian religions also. Please note that ?The Catholic Encyclopedia? is a historic...
New Advent
Catholic Encyclopedia: Pope John Paul Ii: Ordinatio Sacerdotalis
This is the Pope's declaration that only men can be ordained in the Roman Catholic Church as priests. Please note that ?The Catholic Encyclopedia? is a historic reference source and should be viewed in the context of resource material...
Library of Economics and Liberty
Concise Encyclopedia of Economics: Business Cycles
Definition, description, and examples of business cycles in the economy.
Library of Economics and Liberty
Concise Encyclopedia of Economics: Great Depression
For upper level classes and abilities only. A very scholarly explanation of the causes of the Great Depression and steps Franklin Roosevelt to end it. An excellent source due to its thorough analysis and detail.
Other
Stanford Encyclopedia of Philosophy: Scientific Progress
An article which attempts to explain how science has influenced society. Traces the history of scientific progress and how this has influenced societal behavior.
Other
Stanford Encyclopedia of Philosophy: Friedrich Nietzsche
This biographical essay reviews Friedrich Nietzsche's life and his philosophy, including the way it challenged the foundations of traditional morality and Christianity.
Alabama Learning Exchange
Alex: How to Cite Online Resources
After research in the Alabama Virtual Library, middle schoolers will write a paragraph essay and use an online citation utility to create bibliographic citations for an online encyclopedia, an online magazine, and a print resource....
Black Past
Black Past: Abele, Julian F.
Julian Abele, the most successful black architect of his time, is described in this encyclopedia article. There are links to websites that show his designs.
US National Library of Medicine
Medline Plus: Bipolar Disorder
Encyclopedia article with health information about bipolar disorder: types, symptoms, treatments, tests, prognosis.
US National Library of Medicine
Medline Plus: Dehydration
This encyclopedia article on dehydration is organized into several sections, including: "Definition," "Causes, incidence, and risk factors," "Symptoms," and "Treatment."
US National Library of Medicine
Medline Plus: Kidney Transplant
A description of kidney transplants are provided in this encyclopedia article. Risk factors and expectations after surgery are discussed. Diagrams of the kidney are also provided.
US National Library of Medicine
Medline Plus: Progeria
The Medline Plus medical encyclopedia lists basic information on Progeria, a disease that produces rapid aging at a youthful age.
Library of Economics and Liberty
The Concise Encyclopedia of Karl Marx(1818 1883 )
This is a synopsis of Karl Marx and communism which focuses on the background and on economics.
Library of Economics and Liberty
Concise Encyclopedia of Economics: Opportunity Cost
The definition and examples of "opportunity cost."
Library of Economics and Liberty
Concise Encyclopedia of Economics: Biography of Irving Fisher (1867 1947)
A brief biography of famous economist Irving Fisher (1867-1947), and his impact on economic thought.
Library of Economics and Liberty
Concise Encyclopedia of Economics: Monetary Policy
Offers an in-depth description of monetary policy, its characteristics, functions, and goals.
Library of Economics and Liberty
The Concise Encyclopedia of Economics: Henry George
A good discussion of the economic theories of Henry George. He had definite ideas of how to tax property, and the value of free trade.
Library of Economics and Liberty
Concise Encyclopedia of Economics: Biography of Alfred Marshall (1842 1924)
A brief biography of the economics philosopher Alfred Marshall outlining his major contributions to the field of economic thought.
Other
Catholic Encyclopedia: Pharisees
This resource presents a detailed history of the development of the Pharisees, a politico-religious sect of ancient Judaism.
Ohio State University
Ohio State University: Mla Citation Guide [Pdf]
This 10-page resource explains what a bibliography is and gives examples of MLA style in regards to citing, both in the bibliography and in-text, for works such as books, anthologies, encyclopedia articles, journals, magazines,...
US National Library of Medicine
Medline Plus: Vitamin A
This encyclopedia article is organized into the following sections: Illustrations, Alternative Names, Definition, Function, Food Sources, Side Effects, and Recommendations. Click the thumbnails in Illustrations to pull up two charts, one...
US National Library of Medicine
Medline Plus: Niacin
This encyclopedia article on niacin, or vitamin B3, is organized into the following sections: "Illustrations," "Alternative Names," "Definition," "Function," "Food Sources," "Side Effects," and "Recommendations." Click on the thumbnail...