Students explore how volcanoes are formed, list the parts and characteristics of volcanoes, state the differences in various types of lava, and analyze the volume of ejecta from a volcano.

Young scholars diagram the spreading of the ocean floor. In this earth science lesson plan, students read an article on plate boundaries of the ocean. Young scholars are expected to diagram the oceanic convergent...

Students investigate climatological changes that are occurring to the Earth. In this climate change instructional activity, students access an assigned web site to view maps and lessons that show how climate change makes a difference to...

Learn about the effects of volcanic eruptions.

An online presentation of NOVA's program Dimming the Sun. You can read a transcript of the show, read an essay on the effect of contrails on global warming, and view slideshows tracing a timeline of climate change and new technologies...

An interactive look at our atmosphere and factors which affect planet Earth. NASA measurements of volcanic eruptions, toxic emissions, aerosols, and wind patterns are all graphically displayed. Basic text plus bold visuals make this...

Excellent site exploring the mysterious and destructive tsunamis. Explore this scientific marvel and learn about the causes and dangers.

This article discusses tiny particles in the air called aerosols. There are naturally occurring aerosols from volcanic ash, sea spray, grassland fires, and other sources. Learn how scientists believe that aerosols have effects on the...

[Free Registration/Login Required] This passage shares the devastating effects from a volcanic eruption in the city of Goma in the Democratic Republic of the Congo This passage is a stand-alone curricular piece that reinforces essential...

In September 1994, Rabaul volcano on the Papua New Guinean island of New Britain erupted. Very few people were killed due to a well designed evacuation plan. Get the details on the planning that saved thousands of lives.

Explore this photo archive from Goodearth Graphics to learn more about lava formations and effects.

Learn the effects of natural disasters and the difference between natural disasters and man-made disasters. Also explores ten different natural disasters.

NASA's Earth Observatory offers photos showing locations of volcanic activity and earthquakes. Click on thumbnails to view large images and read about the causes and effects of these natural hazards.

This site features several links to tsunami relief sites. Students and teachers can access information about the tsunami relief efforts through these resources.

From ABC News in Science, Julie Steenhuysen's article explores the results of ancient volcanic eruptions that caused a warming effect on the Earth and possibly caused the death of certain species.

Clearly labeled diagram of a volcanic eruption, with a focus on the hazardous effects of landslides, pyroclastic flows, lava flows, eruption clouds, acid rain, tephra, and lahars.