Keywords: Physical Sciences (8887)

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Earth's Interior Structure: Seismic Travel Times in a Constant Velocity Sphere
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Earth's Interior Structure: Seismic Travel Times in a Constant Velocity Sphere

In this activity, students use simple calculations of the travel times of ... (more)

In this activity, students use simple calculations of the travel times of seismic waves in a constant velocity spherical Earth and compare these with observations for the real Earth. They find that the Earth's interior is not homogeneous. The exercise provides suggestions about the actual nature of the Earth's interior structure. This activity will provide experience with graphing, calculations and graphical analysis. Students will also infer the structure of the Earth's interior and gain experience with the methods used to study Earth structure. In addition, the activity could provide an opportunity to make calculations using a calculator from an equation, or to write a computer program to perform seismic travel time calculations. Detailed instructions and calculations are included along with the required worksheets. (less)

Subject:
Chemistry
Geoscience
Physics
Space Science
Material Type:
Activities and Labs
Instructional Material
Interactive
Lesson Plans
Provider:
University Corporation for Atmospheric Research
Provider Set:
DLESE Community Collection
Author:
Larry Braile
The Earth's Internal Heat Energy and Interior Structure
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The Earth's Internal Heat Energy and Interior Structure

This resource identifies the sources of the Earth's internal heat energy as ... (more)

This resource identifies the sources of the Earth's internal heat energy as extraterrestrial impacts, gravitational contraction of the Earth's interior, and the radioactive decay of unstable isotopes, each of which is explained in detail. A discussion of melting and compositional differentiation of the early Earth is followed by a description of the present layers, including the inner and outer core, mantle, and crust. In addition, the asthenosphere and lithosphere are described and illustrated. (less)

Subject:
Chemistry
Geoscience
Physics
Space Science
Material Type:
Images and Illustrations
Reference
Provider:
University Corporation for Atmospheric Research
Provider Set:
DLESE Community Collection
Author:
Victor Camp
The Earth's Layers
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The Earth's Layers

This site contains information about the crust, lithosphere, mantle, convection currents, outer ... (more)

This site contains information about the crust, lithosphere, mantle, convection currents, outer core and inner core of the Earth. The composition and thickness of each of the layers are described along with how they work together. The site also contains goals, objectives, and materials, a hands-on demonstration, and discussion questions with answers. (less)

Subject:
Chemistry
Geoscience
Physics
Space Science
Material Type:
Instructional Material
Interactive
Reference
Provider:
University Corporation for Atmospheric Research
Provider Set:
DLESE Community Collection
The Earth's Magnetic Field
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The Earth's Magnetic Field

This section of the Windows to the Universe website provides information and ... (more)

This section of the Windows to the Universe website provides information and images about Earth's magnetic field (the magnetosphere), including detailed information about the aurora borealis, magnets, and solar wind. Windows to the Universe is a user-friendly learning system pertaining to the Earth and Space sciences. The objective of this project is to develop an innovative and engaging website that includes a rich array of documents, including images, movies, animations, and data sets that explore the Earth and Space sciences and the historical and cultural ties between science, exploration and the human experience. Links at the top of each page allow users to navigate between beginner, intermediate and advanced levels. (less)

Subject:
Chemistry
Geoscience
Physics
Space Science
Material Type:
Data
Images and Illustrations
Instructional Material
Reference
Simulations
Provider:
UCAR Staff
Provider Set:
NASA Earth and Space Science Education Collection
Author:
Roberta Johnson
UCAR Windows to the Universe
The Earth's Moon
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The Earth's Moon

This section of the Windows to the Universe website provides information and ... (more)

This section of the Windows to the Universe website provides information and images about Earth's Moon, including detailed information about lunar geology, lunar atmosphere, eclipse, orbit, and Moon formation. Windows to the Universe is a user-friendly learning system pertaining to the Earth and Space sciences. The objective of this project is to develop an innovative and engaging website that includes a rich array of documents, including images, movies, animations, and data sets that explore the Earth and Space sciences and the historical and cultural ties between science, exploration and the human experience. Links at the top of each page allow users to navigate between beginner, intermediate and advanced levels. (less)

Subject:
Chemistry
Geoscience
Physics
Space Science
Material Type:
Data
Images and Illustrations
Reference
Provider:
University Corporation for Atmospheric Research
Provider Set:
DLESE Community Collection
Author:
Roberta Johnson
The Earth's Moon
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The Earth's Moon

These six moon related activities are presented within six topic headings: observing ... (more)

These six moon related activities are presented within six topic headings: observing the moon (including the phases), the origin of the moon, and tides. This is chapter six of the online book Eyes on the Sky, Feet on the Ground, an exploration into astronomy as a classroom tool for learning how to theorize, experiment, and analyze data. The activities are fully illustrated and contain detailed, step-by-step instructions as well as suggested discussion topics. (less)

Subject:
Chemistry
Geoscience
Physics
Space Science
Material Type:
Activities and Labs
Instructional Material
Interactive
Provider:
University Corporation for Atmospheric Research
Provider Set:
DLESE Community Collection
The Earth's Orbit
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The Earth's Orbit

These eleven activities relate to the results of the motion and position ... (more)

These eleven activities relate to the results of the motion and position of the Earth in its orbit, investigating both the causes and the effects of changing seasons. It starts simply by trying to quantify the observation that it is colder in the winter and ends by measuring the tilt of the Earth. This is chapter two of the online book Eyes on the Sky, Feet on the Ground, containing explorations into astronomy as a classroom tool for learning how to theorize, experiment, and analyze data. The activities are fully illustrated and contain detailed, step-by-step instructions as well as suggested discussion topics. (less)

Subject:
Chemistry
Geoscience
Physics
Space Science
Material Type:
Activities and Labs
Instructional Material
Interactive
Provider:
University Corporation for Atmospheric Research
Provider Set:
DLESE Community Collection
Earths Radiation Belts Tremble Under Impact of Solar Storm
No Strings Attached

Earths Radiation Belts Tremble Under Impact of Solar Storm

Under the wave of energetic particles from the Halloween 2003 solar storm ... (more)

Under the wave of energetic particles from the Halloween 2003 solar storm events, the Earths radiation belts underwent significant changes in structure. This visualization is constructed using daily-averaged particle flux data from the SAMPEX satellite installed in a simple dipole model for the Earths magnetic field. The toroidal structure of the belts corresponds to regions with electron fluxes in excess of 100 electrons-s-cm^2-steradian with energies of 2-6 MeV. The color-scale on the cross section is violet for low flux and white for high flux. The translucent grey arcs represent the fields lines of the Earths dipole field. The 3-dimensional structure was built from the SAMPEX measurement by propagating the particle flux values along field lines of a simple magnetic dipole. (less)

Subject:
Science and Technology
Material Type:
Other
Provider:
NASA
UCAR Staff
Provider Set:
NASA GSFC Scientific Visualization Studio
Scientific Visualization Studio
Author:
Daniel Baker
Greg Shirah
James Williams
Shrikanth Kanekal
Tom Bridgman
Earths Radiation Belts with Safe Zone Orbit
No Strings Attached

Earths Radiation Belts with Safe Zone Orbit

Spacecraft orbiting in the Safe Zone, between two and three Earth radii, ... (more)

Spacecraft orbiting in the Safe Zone, between two and three Earth radii, can be subjected to high levels of harmful radiation as the radiation belts fluctuate in response to space weather events. (less)

Subject:
Science and Technology
Material Type:
Other
Provider:
NASA
UCAR Staff
Provider Set:
NASA GSFC Scientific Visualization Studio
Scientific Visualization Studio
Author:
Daniel Baker
Greg Shirah
James Williams
Shrikanth Kanekal
Tom Bridgman
The Earth's Radiation Budget, Part I
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The Earth's Radiation Budget, Part I

In this exercise, students explore geographical variations in Earth's albedo, reflected solar ... (more)

In this exercise, students explore geographical variations in Earth's albedo, reflected solar radiation (short wave radiation), and Earth radiation (long wave radiation). Using datasets and the data viewer from the Earth Radiation Budget Experiment (ERBE), they will study data from four months of the year (winter, spring, summer, and fall) to discover variations in albedo due to geographic location (longitude and/or latutude), and due to seasonal variation. They will also examine data for incoming solar radiation to see seasonal variations from winter to summer, and examine the clear-sky longwave radiation dataset to see seasonal variations in Earth radiation. In three hands-on experiments, they will use a globe and a photocell to demonstrate the effect of Earth's spherical shape on change in solar radiation with latitude, study albedo by testing the reflectivity of paper of various colors and textures, and examine radiative energy flux by measuring the amount of light received from a lamp placed at increasing distances from a photometer. (less)

Subject:
Chemistry
Geoscience
Physics
Space Science
Material Type:
Activities and Labs
Instructional Material
Interactive
Provider:
University Corporation for Atmospheric Research
Provider Set:
DLESE Community Collection
The Earth's Radiation Budget, Part II
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The Earth's Radiation Budget, Part II

In the second part of this exercise, students explore the effects of ... (more)

In the second part of this exercise, students explore the effects of cloud cover on the distribution patterns of Earth's albedo, reflected solar radiation, and Earth radiation. They will use datasets and the data viewer from the Earth Radiation Budget Experiment (ERBE) to compare total radiation to cloud-free radiation to gain a clear idea of what reflectivity is caused by clouds and what is caused by Earth surface properties such as ice and snow, and to note which areas of Earth are consistently cloud-covered and which are cloud-free. In two hands-on experiments, they will measure the effect of radiation on "blackbodies", pieces of black and white paper whose albedos they measured in part I of the exercise, and use a spectrometer to measure the amount of radiative energy emitted by two different light sources, such as a fluorescent ceiling light and a halogen desk lamp. (less)

Subject:
Chemistry
Geoscience
Physics
Space Science
Material Type:
Activities and Labs
Instructional Material
Interactive
Provider:
University Corporation for Atmospheric Research
Provider Set:
DLESE Community Collection
The Earth's Rotation
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The Earth's Rotation

This resource presents four topics and nine activities related to the Earth's ... (more)

This resource presents four topics and nine activities related to the Earth's rotation. This chapter looks first at the phenomenon of shadows (how they are made), then uses measurements of shadows to track the motion of the sun across the sky. The activities challenge students to quantify their observations, and in so doing, learn useful measuring and organizational techniques. This is a chapter in the online book called Eyes on the Sky, Feet on the Ground, an exploration into astronomy as a classroom tool for learning how to theorize, experiment, and analyze data. The activities are fully illustrated and contain detailed, step-by-step instructions as well as suggested discussion topics. (less)

Subject:
Chemistry
Geoscience
Physics
Space Science
Material Type:
Activities and Labs
Instructional Material
Interactive
Provider:
University Corporation for Atmospheric Research
Provider Set:
DLESE Community Collection
Earth's Water
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Earth's Water

This resource provides an overview of the distribution and occurence of water ... (more)

This resource provides an overview of the distribution and occurence of water on Earth. Topics include where and how much water there is, the water cycle, and how water is measured. There is also discussion of characteristics and distribution of surface water, groundwater, glaciers, and icecaps. (less)

Subject:
Chemistry
Geoscience
Physics
Space Science
Education
Material Type:
Images and Illustrations
Reference
Provider:
University Corporation for Atmospheric Research
Provider Set:
DLESE Community Collection
Earth's Water: Groundwater
No Strings Attached

Earth's Water: Groundwater

This is part of the U.S. Geologic Survey's Water Science for Schools ... (more)

This is part of the U.S. Geologic Survey's Water Science for Schools website. It consists of a set of links to other parts of the site dealing with groundwater-related topics such as groundwater flow and distribution, trends in groundwater use, importance of groundwater, and groundwater quality. Graphic illustrations and photographs are provided. (less)

Subject:
Science and Technology
Chemistry
Ecology
Forestry and Agriculture
Geoscience
Physics
Space Science
Social Sciences
Material Type:
Images and Illustrations
Readings
Reference
Provider:
UCAR Staff
Provider Set:
NASA Earth and Space Science Education Collection
Author:
Howard Perlman
Earthscope US Array: Array Network Facility
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Earthscope US Array: Array Network Facility

This is the homepage of the Array Network Facility (ANF), a component ... (more)

This is the homepage of the Array Network Facility (ANF), a component of the EarthScope USArray and Plate Boundary Observatory (PBO) programs. The ANF, established by the Anza Group (a realtime seismic array located in Anza, California), is charged with ensuring all seismic data collected from the arrays are transmitted, checked for quality, archived, and accessible online for researchers and the general public. A set of links provides access to other components of Earthscope such as USArray, a continental-scale seismic observatory; the Plate Boundary Observatory, a geodetic observatory designed to study strain fields resulting from deformation across the active boundary between the North American and Pacific plates; and Earthscope, an initiative to explore the structure and evolution of the North American continent. There are links to public information, including publications about ANF and USArray; maps and information on the active seismic stations in USArray; maps and information on recent earthquakes recorded by USArray stations; and a selection of online tools that can be used to observe the data from USArray. There is also a link to the Incorporated Research Institutions for Seismology (IRIS) Data Management Center, which houses data collected by USArray. (less)

Subject:
Chemistry
Geoscience
Physics
Space Science
Technology
Education
Material Type:
Data
Provider:
University Corporation for Atmospheric Research
Provider Set:
DLESE Community Collection
Author:
Frank Vernon
Earthshots: Satellite Images of Environmental Change
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Earthshots: Satellite Images of Environmental Change

This is an e-book of before-and-after Landsat images (1972-present), showing recent environmental ... (more)

This is an e-book of before-and-after Landsat images (1972-present), showing recent environmental events and introducing the concept of remote sensing. Some changes are due to natural causes and some are due to human causes. Image topics include agriculture, cities, deserts, disasters, and geology. Each set of images includes a detailed description, photographs and maps, a list of references, and a question/answer section. (less)

Subject:
Chemistry
Geoscience
Physics
Space Science
Social Sciences
Education
Material Type:
Activities and Labs
Data
Images and Illustrations
Instructional Material
Interactive
Reference
Provider:
University Corporation for Atmospheric Research
Provider Set:
DLESE Community Collection
Earthtime Lesson Plan for U/Pb Dating (grade 8-12)
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Earthtime Lesson Plan for U/Pb Dating (grade 8-12)

The Earthtime Lesson Plan is a complete description of a radiometric dating ... (more)

The Earthtime Lesson Plan is a complete description of a radiometric dating module taught to high school students at MIT. U/Pd dating and it's uses, teacher background, materials needed, time frame and National Science Standards are all provided as well as worksheets with teacher solutions. This module, consisting of three activities, is initially designed for a 90min period. (less)

Subject:
Chemistry
Geoscience
Life Science
Physics
Space Science
Material Type:
Activities and Labs
Instructional Material
Interactive
Lesson Plans
Provider:
University Corporation for Atmospheric Research
Provider Set:
DLESE Community Collection
Eastern Boundary Currents
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Eastern Boundary Currents

Materials presented here describe how new data from surveys, satellite imagery, and ... (more)

Materials presented here describe how new data from surveys, satellite imagery, and buoys have led to a revised view of the nature of the coastal upwelling that occurs seasonally off the coast of California. Includes references and links to related sites. (less)

Subject:
Chemistry
Geoscience
Physics
Space Science
Material Type:
Reference
Provider:
UCAR Staff
Provider Set:
NASA Earth and Space Science Education Collection
Author:
Teresa Chereskin