This page from the Volcano World website contains a summary account of the 1959 eruption at Kilauea Iki which is illustrated by photographs and videos.

This video adapted from the Valdez Museum & Historical Archive, explores what happened during the Great Alaska Earthquake of 1964 through original footage, first-person accounts, and animations illustrating plate tectonics.

An exercise on the effects of flooding that took place in the upper Mississippi River drainage basin in 1993, using before and after satellite images.

This movie shows a total eclipse of the Sun which occurred in 1994. It is accompanied by a link to a written description of the Sun's physical characteristics.

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Materials * Completed monthly weather recording sheet * Crayons * Sentence strips with frames (see below) * Student worksheet Actions Every day for a m...

This page hosts a collection of geometric tasks in pdf format that are aligned to the CCSS standards 1.G1 through 1.G3. It also has links to supplementary literature and learning materials.

This resource contains presentations from one of the Center for Automotive Research's (CAR's) breakfast briefings titled "Automotive Fuels and Emissions: Policies, Compliance, & Potential Impact of Future Technologies." This briefing occurred on 12/5/13 at Robert Bosch LLC in Farmington Hills, MI. At the briefing presenters discussed the strategic implications of Tier 3 regulations which will soon be finalized and may impact future technology decisions in a multitude of ways. The impact of Tier 3 emission regulations is expected to be far reaching as they have the potential to influence the quality of fuel, as well as usage of alternative fuels and powertrains. Further, the regulations will have a direct influence on the technologies, such as diesel and gasoline direct injection, that automakers will utilize to meet the fuel economy standards through MY2025. Included in this resource are the presentations from the National Renewable Energy Laboratory (NREL), Volkswagen, and Bosch utilized at the briefing.

This resource contains speaker presentations from the 2013 Plug-In Conference and Exposition. This conference took place September 30, 2013 to October 3, 2013 at Liberty Station in San Diego, CA and had the theme What's Next for the Electric Highway? This event brought together automotive manufacturers, component suppliers, electric utilities, government agencies, academia, and the environmental community to collaborate on the next steps in plug-in electric vehicle technology, infrastructure, policies and regulations, and market development.

In this 7-minute video astronomer Dr Meghan Gray explains the relationship of the Earth's rotation and its revolution around the Sun, resulting in the need to add an extra day to our calendar every four years. She describes additional adjustments required to keep our calendar aligned with the Earth's movements. Dr Gray explains the Julian date and its usefulness.

In this physics activity, learners build their own rockets out of film canisters and construction paper. Learners discover how a chemical reaction (from a mix of water and Alka-Seltzer) creates gas pressure to propel the craft. The activity explores the three states of matter and Newtonäóťs Laws of Motion.

This interactive Flash applet provides a Concentration-type game (called pelmanism in the UK) in which students must discern the properties of three-dimensional solids and their colors in order to match them in pairs. Spheres, cones, prisms and other standard 3-D shapes are hidden face down on cards. Time and number of trials needed to solve are recorded.

This tutorial explains some of the techniques developed by astronomers to determine the distances of objects we see in the sky. Links to additional information are embedded in the text.

This site presents graphic plots of solar wind and magnetic field data from the Advanced Composition Explorer (ACE) spacecraft.

As the carbon dioxide concentration of our atmosphere increases and our climate warms, the hay fever season seems to be getting longer and more severe. In this case study, students assume the a role of a public relations specialist contracted to communicate the link between climate change and pollen allergies. The activity focuses on the importance of scientific skills to careers outside science, and is most suitable for a lower-level introductory biology, human health, or environmental science course.

A video from the Extreme Ice Survey in which Dr. Tad Pfeffer and photographer Jim Balog discuss the dynamics of the Columbia glacier's retreat in recent years through this time-lapse movie. Key point: glacier size is being reduced not just by glacial melting but due to a shift in glacial dynamics brought on by climate change.

This Astronomy Picture of the Day depicts the Himalayan mountain range in Nepal. The image was taken from the International Space Station. Links provide background information about Skylab, the Himalayas, and plate tectonics.

AQUASTAT - a global information system of water and agriculture developed by the Land and Water Development Division of FAO - provides comprehensive information about agricultural water management across the world, with emphasis on developing countries and countries in transition. The site includes a database of country data, country profiles, maps and GIS, water resources, online publications, and links to related sites and resources.

ARKive is a collection of photographs, videos, and fact-files illustrating thousands of species of animals, with emphasis on the International Union for Conservation of Nature and Natural Resources (IUCN) Red List of endangered species, and on species found in Britain. For each animal there are approximately 10 minutes of video footage, 6-10 still photos, and sound recordings (where appropriate), creating a complete profile of the species' characteristic behavior and appearance. The images are accompanied by a page of facts, including taxonomy, a physical description, conservation status, geographic range, habitat, and other information. There are also links to other animals with related taxonomic families, habitats, or conservation status.