Catalog Search Results
Language
English
Description
Earth science in action covers everything from the Earth's layers, rocks, minerals and soil to oceans, erosion, volcanoes and earthquakes. Each program includes segments that showcase interesting land formations and tools used by geologists around the world, as well as a stimulating experiment that students can replicate in the classroom.
2) Fossils
Language
English
Description
Students look at molds, casts and imprints of various living things, and see how scientists place the age of these ancient remains and how they preserve them. They will see how paleontologists discover fossils, and will take a virtual trip to the Petrified Forest.
3) Volcanoes
Language
English
Description
Students get a closeup look at volcanoes and learn the difference between magma and lava. They are shown how a tilt meter is used to predict when a volcano might erupt, and are treated to a virtual visit to Horseshoe Lake at Mammoth Mountain.
4) Minerals
Language
English
Description
Students will examine the makeup of a mineral as they review such properties as hardness, luster, streak, color and density. They learn where minerals can be found and their many uses. Includes a visit to an old silver mine.
Language
English
Description
Students will track the history of the earth, which covers billions of years, and will learn about the four major segments of geologic time--Precambrian, Paleozoic, Mesozoic and Cenozoic eras-- and also the plant and animal life that developed during each era. They will see how geologists study the layers of rock under the ocean floor, and how they can decipher unusual formations in rock layers.
Language
English
Description
Students see how forces such as weathering and continental drift have changed the face of the earth's surface, and learn the difference between a folded and a block mountain, and the difference between a mesa and a butte. They are shown the effects of sea floor spreading at mid-ocean ridges, and take a virtual visit to Devil's Postpile.
7) Soil
Language
English
Description
Students learn about the different types of soil and how soil is important for sustaining plant and animal life. They will learn about the formation of soil and its components, and also methods of conservation used to protect the earth's soils, and ways in which modern farmers are fighting the forces of erosion with new plowing techniques.
8) Earthquakes
Language
English
Description
"Students discover how the underground movement of rocks, along with stresses on the Earth's crust, produces surface-level tremors. Learn how scientists determine where the hypocenter and epicenter of a quake occur while exploring the destructive power of seismic waves, and how seismologists predict where earthquakes will occur. A visit to the University of California at Berkeley showcases the use of a "shaker table" by engineers who design buildings,...