Choosing books that are "just right"
This teacher research study examines how students select books for independent reading and how teachers can help them make choices more appropriate to their reading levels.
Teaching about Thanksgiving
Resources and activities to help you bring historical accuracy, cultural sensitivity, and a broader context to discussions about the quintessentially American holiday.
Connecting with community through oral history
Through interviews and photographs, Harnett County students learn about their community's agricultural past.
Reading images: an introduction to visual literacy
Images are all around us, and the ability to interpret them meaningfully is a vital skill for students to learn.
Technical Resource Document: Extraction and Beneficiation of Ores and Minerals Volume 2: Gold
This EPA document provides detailed information about the gold mining industry in terms of the wastes associated with gold mining and processing. The report briefly characterizes the geology of gold ores and the economics of the industry. Following this discussion is a review of gold extraction and beneficiation methods; this section provides the context for descriptions of wastes and materials managed by the industry, as well as a discussion of the potential environmental effects that may resul
Gulf Coast Geology
This website is part of the Environmental Protection Agency's Gulf of Mexico Program. The program includes projects encompassing everything from improving septic systems to planting seagrass to protecting habitats. All projects aim to improve the ecological and economical health of the region. The site provides information about Gulf Coast geology as well as links to information about the Ice Age.
The Water Sourcebooks contain 324 activities for grades K-12 divided into four sections: K-2, 3-5, 5-8, and 9-12. Each section is divided into five chapters: Introduction to Water, Drinking Water and Wastewater Treatment, Surface Water Resources, Ground Water Resources, and Wetlands and Coastal Waters. This environmental education program explains the water management cycle using a balanced approach showing how it affects all aspects of the environment. All activities contain hands-on investigat
The financial markets context
How do financial markets match providers with users, and how efficiently does the market determine prices? Can investors rely on notoriously volatile stock markets to function efficiently? It can be difficult to determine whether successful investments are a matter of skill and luck. In this unit, you will interrogate whether markets can function efficiently, and what factors might militate against this. You will also learn the importance of the Efficient Markets Hypothesis.
California juniper tree
The juniper tree is a gymnosperm from the phylum of conifers. The cone is the reproductive structure of conifers. The berry-like structures are actually cones where reproduction occurs.
One reason why caecilians are considered to be amphibians is because they go through metamorphosis to reach adulthood. Caecilians are unique amphibians because some of them lay eggs, but some of them give birth to live young.
Human arm muscles are connected to the bones by things called tendons. Tendons are rope-like fibers that join muscles to bones and allow movement.
Apple Screen 1
The apple has just fallen from the tree and rests on the ground.
Roots can grow in multiple directions. Just because this plant was in a cup didn't stop the roots from growing longer and creating individual branches.
EPTOMS Ozone (7-26-96 - 12-4-00)
This animation shows the total ozone as measured by Earth Probe TOMS since the earliest measurements by that instrument. Days on which no data was taken appear as blank.
El Nino-La Nina Sea Surface Temp and Height Anomaly 3D Isometric View: December 1997 through April 2
Isomorphic view of El Nino. Sea surface temperature anomalies are colors, with red being warmer than normal and blue being colder than normal, and sea surface height anomalies are exaggerated heights.
Cumulative Earthquake Activity from 1980 through 1995 (WMS)
This animation shows a cumulative view of earthquake activity for the whole world from 1980 through 1995. Each dot on the image represents the number of earthquakes with magnitude greater than 4.2 that have occurred in a 0.35 by 0.35 degree area of the globe since January 1, 1980. A yellow dot represents 1 or 2 earthquakes, an orange dot represents about 10 earthquakes, and a red dot represents 50 to 200 earthquakes. The background image, if present, shows the topography of the ocean floor. As t
Landsat Witnesses the Destruction of Mesopotamian Ecosystem
In one of the greatest ecological disasters of our time, the ancient marshlands of Mesopotamia are systematically being converted to dry salt flats as a result of human mismanagement of the regions water resources. Landsat satellite imagery reveals that in the last 10 years, wetlands that once covered as much as 20,000 square km in parts of Iraq and Iran have been reduced to a small fraction of their original size. The authors of a new report released by the United Nations Environment Programmes
MODIS Snow Cover over Europe
The Moderate Resolution Imaging Spectroradiometer (MODIS) provides data in 36 spectral bands, some of which are used in an algorithm to map global snow cover. The animation shows the dynamic behavior of the advance and retreat of continental snow cover over Europe for the winter of 2001-02 from MODIS-derived 8-day composite snow maps with a spatial resolution of about 5 km.
SeaWiFS Biosphere: Pacific Ocean
Viewing the Pacific Ocean (data begins at Sept. 97 to June 99)
Biomass Burning over South America
Biomass burning is the burning of living and dead vegetation. It includes the human-initiated burning of vegetation for land clearing and land-use change as well as natural, lightning-induced fires. Scientists estimate that humans are responsible for about 90% of biomass burning with only a small percentage of natural fires contributing to the total amount of vegetation burned. Burning vegetation releases large amounts of particulates (solid carbon combustion particles) and gases, including gree