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      Displaying 561-580 of 6433 resources
      • Thumb image for The Nation's Report CardResource Type: Website / HyperLink

        The Nation's Report Card

        Grades: No grades selected.
        Subjects: Education, Child Development & Family Services
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The Mosquito/El MosquitoResource Type: Website / HyperLink

        The Mosquito/El Mosquito

        Grades: TK/K to 6
        Subjects: Light, Sound & Other Waves, Earth & Space Science, Chemistry, Physics
        In this online activity, you test your ability to hear different frequencies, then you compare your frequency range with the fre...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The Molecular Structure PagesResource Type: Website / HyperLink

        The Molecular Structure Pages

        Grades: TK/K to 9
        Subjects: Atomic Structure, Elements & the Periodic Table, Bonding & Compounds, Chemistry, Biochemistry
        This page provides three ways to see molecules. They are the empirical formula, the structural formula, and the molecular model....
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The Modern Gold RushResource Type: Image

        The Modern Gold Rush

        Grades: No grades selected.
        Subjects: Earth's Resources, Agriculture & Natural Resources
        This graph provides information about U. S. gold production from the 1840's to the 1990's. The graph shows that gold production ...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The Mississippi River and Tributaries ProjectResource Type: Website / HyperLink

        The Mississippi River and Tributaries Project

        Grades: No grades selected.
        Subjects: Earth's Resources, Agriculture & Natural Resources, Weather, Climate & Atmosphere
        This website, provided by the US Army Corps of Engineers, describes the Mississippi River Basin and the engineering history on t...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The Middle Yellowstone Valley from Livingston to Gardiner, Montana: A Microcosm of Northern Rocky Mountain GeologyResource Type: Website / HyperLink

        The Middle Yellowstone Valley from Livingston to Gardiner, Montana: A Microcosm of Northern Rocky Mountain Geology

        Grades: No grades selected.
        Subjects: Geology & the Dynamic Earth, Earth & Space Science, Earth's Resources
        The middle Yellowstone valley, between the Great Plains at Livingston and the edge of the Yellowstone volcanic plateau near Gard...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The Mastodon Page at PRIResource Type: Website / HyperLink

        The Mastodon Page at PRI

        Grades: No grades selected.
        Subjects: No subjects selected.
        Since August 1999, the Paleontological Research Institute in conjunction with Cornell University, has been involved with three m...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The Many Colors of SunlightResource Type: Website / HyperLink

        The Many Colors of Sunlight

        Grades: TK/K to 9
        Subjects: Light, Sound & Other Waves, Physics
        This comprehensive resource discusses light, prisms, colors, wavelengths and the visible light spectrum. Illustrations, addition...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The Mandelbrot SetResource Type: Website / HyperLink

        The Mandelbrot Set

        Grades: PS/Pre-K to 12, Undergraduate to Graduate
        Subjects: Professional Development, Number Sense, Mathematics, Angles & Pythagorean Theorem and 3 additional..
        In this activity, students can zoom in on the Mandelbrot set and Julia sets for different C-values. At any point, students can c...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The Mandelbrot SetResource Type: Website / HyperLink

        The Mandelbrot Set

        Grades: 6 to 12, Undergraduate to Graduate
        Subjects: Measurement & Geometry, Professional Development, Curriculum Design, Mathematics, Education, Child Development & Family Services
        This lesson is designed to develop students' understanding of complex numbers, iterations, and two variable functions by introdu...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The Magnetic FieldResource Type: Website / HyperLink

        The Magnetic Field

        Grades: TK/K to 9
        Subjects: Properties of Matter, Physics, Electricity & Magnetism
        This webpage is part of the University Corporation for Atmospheric Research (UCAR) Windows to the Universe program. It describes...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The Liquid RainbowResource Type: Document

        The Liquid Rainbow

        Grades: TK/K to 9
        Subjects: Light, Sound & Other Waves, Earth & Space Science, Measurement, Tools, and Data Analysis, Physics and 5 additional..
        Learners are challenged to discover the relative densities of colored liquids to create a rainbow pattern in a test tube. Five d...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The Lemon Battery ChallengeResource Type: Website / HyperLink

        The Lemon Battery Challenge

        Grades: TK/K to 9
        Subjects: Light, Sound & Other Waves, Ecology & Ecosystems, Physics, Electricity & Magnetism and 2 additional..
        In this activity, students will learn how a chemical reaction can produce electricity. Learners will create a wet-cell battery t...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The KT ExtinctionResource Type: Website / HyperLink

        The KT Extinction

        Grades: No grades selected.
        Subjects: Life Sciences, Our Solar System
        This website provides an excerpt on the KT boundary from an introductory text on paleontology. The text covers environmental and...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The Instructional ArchitectResource Type: Website / HyperLink

        The Instructional Architect

        Grades: PS/Pre-K to 12
        Subjects: Professional Development, Technology, Education, Child Development & Family Services, Measurement, Tools, and Data Analysis
        The Instructional Architect (IA) is a digital library service developed to support the instructional use of National Science Dig...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The Ins and Outs of TidesResource Type: Website / HyperLink

        The Ins and Outs of Tides

        Grades: 9 to 12
        Subjects: Earth & Space Science, Force & Motion, Mathematics, Ecology & Ecosystems and 4 additional..
        In this activity, learners will compare predicted and observed tides using data from The National Oceanic and Atmospheric Admini...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The Huxley FileResource Type: Website / HyperLink

        The Huxley File

        Grades: No grades selected.
        Subjects: Evolution and Adaptation
        This site, hosted by Clark University, is addressed to a broad audience ranging from those who never heard of Thomas Henry Huxle...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The History of the Earth: Classroom ActivityResource Type: Website / HyperLink

        The History of the Earth: Classroom Activity

        Grades: No grades selected.
        Subjects: No subjects selected.
        Students use events in an older adult's life to develop a timeline, which is then related to a scaled model of major events in t...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The Hebgen Lake Earthquake Area, Montana and WyomingResource Type: Website / HyperLink

        The Hebgen Lake Earthquake Area, Montana and Wyoming

        Grades: No grades selected.
        Subjects: Geology & the Dynamic Earth, Agriculture & Natural Resources
        Several high-angle normal faults bounding the west front of the Madison Range north of Hebgen Lake, recurrently active during mu...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0
      • Thumb image for The Heart as a PumpResource Type: Website / HyperLink

        The Heart as a Pump

        Grades: TK/K to 9
        Subjects: No subjects selected.
        Students will build a homemade pump using a balloon, a mason jar, and some straws. Then, using the weblinks provided, they will ...
        Contributor: National Science Digital Library (NSDL)
        Views: 0Favorites: 0