Other
University of Rochester: Intro. To the Scientific Method
Here you can find a detailed overview of the scientific method. Content addresses what the scientific method is, its four steps, some common mistakes when applying the scientific method, and more.
American Museum of Natural History
American Museum of Natural History: O Logy: Stuff to Do: Light Quest
Light Quest activity, for two to four players, designed to explain how atoms create light and where photons come from.
Victorian Web
The Victorian Web: The Sublime
This site provides an excellent variety of essays divides the topic of the sublime into four categories: objective sublime, subjective sublime, characteristic literary motifs, and cultural relations.
Buddha Dharma Education Association
Buddha Net: Dependent Arising
This Buddhanet essay on Buddhist doctrine of dependent origination presents the theory of the cause of rebirth and suffering.
A&E Television
History.com: What Happened to Twa Flight 800?
Minutes after its take off from New York's Kennedy International Airport, a Boeing 747 headed for Paris exploded midair over the Atlantic Ocean off the coast of Long Island on July 17, 1996, leaving all 230 people aboard dead. The...
Wolfram Research
Wolfram Math World: Closed Set
Site gives four different definitions of a closed set in mathematics. Each of the definitions has at least one link for further clarification. The site also expresses which of these definitions is most commonly encountered.
CK-12 Foundation
Ck 12: Biology: Common Parts of the Cell
[Free Registration/Login may be required to access all resource tools.] Describes four parts all cells have in common.
TED Talks
Ted: Ted Ed: Why Is Yawning Contagious?
*Yaaawwwwwn* Did just reading the word make you feel like yawning yourself? Known as contagious yawning, the reasons behind this phenomenon have been attributed to both the physiological and psychological. It's been observed in children...
Lawrence Berkeley National Laboratory
Berkeley Lab: The Particle Adventure
Visit this site for an interactive tour of the atom and all aspects of particle physics. View the animations available with almost every description on this site. A great place for the fundamentals of particles and forces including a...
Internet Encyclopedia of Philosophy
Internet Encyclopedia of Philosophy: Egoism
Essay explaining the varieties and nuances of egoist ethical theories. Divides such theories into four types: positivist, rational, ethical and conditional. Does a good job of providing examples along the way.
English for Everyone
Reading Comprehension Assessment: "Rio Grande" [Pdf]
Read Theory provides a free reading comprehension assessment that is designed for middle grade students. Four multiple choice questions and four extended response questions are included on this nonfiction reading assessment.
Cosmo Learning
Cosmo Learning: Principles of Digital Communications I
A collection of video lectures from a course introducing students to the theory and practices in digital communications. Webpage includes twenty-four lectures from a professor at the Massachusetts Institute of Technology. Lectures vary...
Wikimedia
Wikipedia: Cadence
Read about the musical term cadence and its importance in music and dance. Includes a description of the four main types of cadences in modern music theory and other definitions of cadence at this site.
English for Everyone
Reading Comprehension Assessment: "Fruit Fly Fix" [Pdf]
Read Theory provides a free reading comprehension assessment that is designed for reading students in elementary grades. Four multiple choice questions and three extended response questions are included on this nonfiction reading...
English for Everyone
Reading Comprehension Assessment: Chronic Traumatic Encephalopathy [Pdf]
Read Theory provides a free reading comprehension assessment that is designed for students in the high school grades. Seven multiple choice questions and four extended response questions are included on the nonfiction reading assessment.
PBS
Mountain Maker Earth Shaker
This resource gives an introduction to the theory of plate tectonics. It also has animations of four types of plate boundary interactions (convergent, divergent, transforming, collisional).
Stanford University
Stanford Encyl. Of Philosophy: Aristotle's Psychology
Detailed, sophisticated analysis from the Stanford Encyclopedia of Philosophy of Aristotelian psychology. Discusses primarily his theories of "hylomorphism", mind, and perception. Also explains Aristotle's famous "four causes."
Other
Online Mallet Lessons
This site contains numerous tips and suggestions dealing with many facets of playing the vibraphone and marimba. Although much of the information is jazz oriented, some is general enough that it could easily be applied to xylophone and...
Tom Richey
Slide Share: Atomic Models: Everything You Need to Know
A detailed slideshow for Grade 8 students that looks at the history of our understanding of atoms. Looks at the ideas presented by Democritus, John Dalton, J.J. Thomson, Ernest Rutherford, and Niels Bohr, and the modern-day wave model. A...
Curated OER
Science Kids: Science Images: Stonehenge, Wiltshire, England
Found in the English county of Wiltshire, Stonehenge is a world famous, prehistoric monument that has been the subject of debate for many years. The stones are believed to have been erected in this special part of England sometime around...