Khan Academy
Khan Academy: Threshold Card: Threshold 2 Stars Light Up
An infograph to explore threshold 2 when the stars lite up.
University of Illinois
University of Illinois: Modern American Poetry: About Marcus Garvey and the Black Star Line
This page contains a mix of different information about Marcus Garvey and a photograph exhibit relating to his steamship company, the Black Star Line.
PBS
Pbs Learning Media: Solar System Scale Model
Teach the concept of scale models and the size of the solar system through this extensive lesson plan. Students will learn about scale models, estimate which objects to use to create a scale model of Earth and Sun, and figure out how far...
Space Telescope Science Institute
Nasa: Hubble Space Telescope: Universe
At this site from HubbleSite you can discover the universe by taking a look back toward the beginning of time. Site contains links to information on planets, stars, galaxies, and much more.
TED Talks
Ted: Ted Ed: The Law of Conservation of Mass
Everything in our universe has mass- from the smallest atom to the largest star. But the amount of mass has remained constant throughout existence even during the birth and death of stars, planets and you. How can the universe grow while...
Other
Astromador: Astronomia Para Amadores
This resources focuses exclusively on astronomy. It's packed with historical facts about space exploration, famous people who pioneered the study of stars and planets. It features chronological list of space exploration, current news,...
Science Buddies
Science Buddies: The Milky Way and Beyond: Globular Clusters
Globular clusters, compact groups of about a million stars that move around together in galaxies, are among the oldest objects found in the universe. Since they are found most galaxies and since they've been around for so long, globular...
NASA
Nasa: Imagine the Universe: "Nasa Detects One of Closest"
Site provides the article, "NASA Detects One Of Closest And Brightest Gamma Ray Bursts." Provides links to learn more about gamma rays and black holes as well as other resources.
Khan Academy
Khan Academy: Activity: This Threshold Today
An activity for students to make connections between the universe during threshold 2 and the universe today. Students will learn that there are similarities in conditions that existed during threshold 2 with conditions that exist today.
Space Telescope Science Institute
Space Telescope Science Institute: Amazing Space
Amazing Space promotes the "science and majestic beauty of the universe for use in the classroom." Here you can find learning activities, lesson plans, teaching guides, and helpful tips for students eager to learn about space and space...
Other
University of Leicester: Spiral Galaxies
Provides a general overview of spiral galaxies, including descriptions of the different classes of spiral galaxy.
Other
University of Leicester: Comets, Asteroids & Meteorites
Provides a general overview of comets, asteroids, and meteorites. Content includes ways to identify them in the night sky, as well as detailed information on each type of small body.
Other
University of Leicester: Comets
A detailed look at comets. Content outlines our observational history, as well as the origins of comets and an explanation of the appearance of comets.
Georgia State University
Georgia State University: Hyper Physics: Red Giants
Describes the red giant star's development stages and the scenario of our sun as a red giant. Diagrams are used to present the information.
Ohio State University
Ohio State University: Red Giant Star Lecture Notes
Describes how a star becomes a red giant, the structure of a red giant, core-helium fusion, lifetime predictions, and the position on the HR diagram.
University of Florida
Baldwin Library: The Storyland of Stars by Mara L. Pratt
This is an online photocopy of the original text of the children's book The Storyland of Stars by Mara L. Pratt (1892). This is an illustrated, nonfiction book about astronomy and the stars from Young Folks' Library of Choice Literature.
Tree of Life Project
The Tree of Life Web Project: Crinoidea
This site from the University of Arizona provides a very thorough information on chrinoidea, including diagrams and pictures.
Khan Academy
Khan Academy: Threshold Card: Threshold 3 New Chemical Elements
An infograph that discusses how new chemicals were formed during the formation of the universe.
Iowa State University
Iowa State University: Iowa Insect Information Notes Ticks
Here are 3 articles about the American Dog Tick, Bat Tick, and the Lone Star Tick. Each includes descriptions, life cycles, and ways to control them as pests.
University of Oklahoma
University of Oklahoma College: National/historic American Flags
Presents historical and current images of state, federal and related flags including The Stars and Stripes, other United States federal flags, Flags of the Revolution, and Flags of the Confederate States.
Sonoma State University
The Gamma Ray Large Area Space Telescope (Glast)
Background information on gamma rays and the sources of gamma rays in the universe. Discusses the purpose of the GLAST space mission and the types of findings which they wish to make. A link to the GLAST movie provides an excellent...
Wikimedia
Wikipedia: The Black Hole
This site examines the black hole as an object in astrophysics. Delve into this comprehensive resource that covers this concept from its history, to qualitative physics, the reality of black holes, mathematical physics and more.
University of Illinois
University of Illinois: Stars and Constellations
A large collection of information about and photos of the starts and constellations in the sky.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Fractions Intro
Create your own fractions using fun interactive objects. Match shapes and numbers to earn stars in the fractions games. Challenge yourself on any level you like. Try to collect lots of stars!