Space Telescope Science Institute
Hubble Site: Planetary Nebula
This site from Hubblesite provides a brief news article as well as colorful pictures of a nearby Planetary Nebula. Offers links to images, video, fast facts, a question and answer section as well as related links.
NASA
Nasa: The Space Place
This site from NASA's Space Place is geared towards early elementary learners. It offers detailed instructions for crafts and activities related to space, games and a teacher resource area. Students can also ask an expert at this site.
NASA
Nasa: Asteroids: Overview: Ancient Space Rubble
Comprehensive look at asteroids, with many useful facts, photos, and related links. Provides a detailed account of how asteroids get their names and a timeline of significant dates.
University Corporation for Atmospheric Research
Ucar: National Operational Hydrologic Remote Sensing Center: Snow Hydrology
This slide show, developed by Don Cline, describes the effects and importance of snow. Topics covered are snowfall formation, snow cover, blowing snow, snow metamorphism, and snow modeling.
City University of New York
Lehman College: An Introduction to Lines
Use this site for two short lesson plans regarding Euclidean and Spherical lines. Intersecting and parallel lines are discussed. The lesson contains activities for two days of class.
Curated OER
Nasa: Space Place: Kuiper Belt and Oort Cloud
A diagram of the Kuiper Belt and Oort Cloud surrounding our solar system.
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