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Visitors can learn about the causes of "space weather" and phenomena like auroras, interruptions in electric power service, and interference with communications. Definitions of solar activities such as coronal mass ejections, solar energetic particles, and coronal holes are provided, along with explanations of how they affect Earth's magnetic field and atmosphere. Remotely-sensed imagery of solar ... Full description.
Grade level: High (9-12)
Resource type: Ref. material
Subject: Physics, Space science
 
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This resource provides an explanation of gravity, the weakest of the four universal forces. Newton's Law of Universal Gravitation is presented, and certain gravitational phenomena are explained, such as why astronauts float in space. A table that compares gravitational forces on Earth with that on the Moon, the Sun, and other planets is included. Full description.
Grade level: High (9-12)
Resource type: Ref. material
Subject: Physics, Space science
 
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In any solar system, planets move in orbits around a star, bound to it by gravitation. Orbital paths are elliptical in shape. Users can explore concepts such as gravitational force, the properties of ellipses, Newton's principles of mechanics, Kepler's laws, orbital acceleration, and tidal effects. This is part of the NASA Jet Propulsion Laboratory's Basics of Space Flight training module. A glossary, ... Full description.
Grade level: High (9-12)
Resource type: Assessment / Evaluation, Ref. material
Subject: Physics, Space science
 
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This is the home page for a set of articles on the Earth's magnetosphere and other phenomena related to charged particles and magnetic fields. This page features an index consisting of summary files on such topics as magnetism, electrons, ions, plasmas, radiation belts, the sun and solar wind, the magnetosphere, and auroras. Following the summaries are links to detailed articles on each topic. Each ... Full description.
Grade level: High (9-12)
Resource type: Illustration - scientific, Glossary, Ref. material
Subject: Physics, Space science
 
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The Kepler Mission is part of NASA's Discovery Program, a series of lower-cost, highly focused planetary science investigations designed to enhance understanding of the solar system. This webpage describes how Kepler, scheduled for launch in 2006, will use a unique spaceborne telescope specifically designed to search for Earth-like planets around stars beyond our solar system. It will look for the ... Full description.
Grade level: High (9-12)
Resource type: Ref. material, Educational portal
Subject: Physics, Space science
 
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This is the table of contents listing for the NASA booklet "Shedding a New Light on the Universe". Each item in the table is a link to a specific topic. Topics include such items as the electromagnetic spectrum, frequency, wavelength, and energy activity, the multiwavelength Milky Way, the Crab Nebula in different energies, spectroscopy, satellites and their parts, and the Rossi X-ray Timing Explorer ... Full description.
Grade level: High (9-12)
Resource type: Imagery - remotely sensed, Ref. material
Subject: Physics, Space science
 
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This site provides an in-depth discussion of "Big-Bang" cosmological theory. Topics include: foundations of the theory, observational tests, limitations and extensions of the theory, and some properties of the universe itself such as the amount and type of matter, its expansion, age, shape, occurrence of life, and its ultimate fate. The site features text, photographs, remote sensing imagery, graphs, ... Full description.
Grade level: High (9-12)
Resource type: Ref. material
Subject: Physics, Space science
 
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This site describes bouyancy (the difference between the upward and downward forces acting on the bottom and the top of an object) and the Archimedes Principle, which states that the buoyant force on a submerged object is equal to the weight of the fluid that is displaced by it. It consists of text descriptions of these principles, using the examples of metal cubes suspended in water and hot air baloons ... Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Problem set, Ref. material
Subject: Mathematics, Physics
 
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Growth in "mega-cities" is altering the landscape and the atmosphere in such a way as to curtail normal photosynthesis. By using data from The Defense Meteorological Satellite Program's Operational Linescan System, researchers have been able to look at urban sprawl by monitoring the emission of light from cities at night. By overlaying these "light maps" onto other data such as soil and vegetation ... Full description.
Grade level: Primary (K-2), Intermediate (3-5), Middle (6-8), High (9-12)
Resource type: Imagery - remotely sensed
Subject: Physics, Space science
 
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Users can choose from an extensive selection of links to resources for use in the study of the history of space exploration. The links provide access to historic information and publications, chronologies, and mission summaries for American, Russian, European, and other space missions. For educators, there are links to guides to robotic spacecraft and to observing the space shuttle in orbit. Links ... Full description.
Grade level: Primary (K-2), Intermediate (3-5), Middle (6-8), High (9-12)
Resource type: Imagery - remotely sensed, Video, Ref. material, Educational portal
Subject: Physics, Space science
 
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Results 61 - 70 of 84 <<  3 4 5 6 7 8 9  >>