The Physical Geography II SeriesDiscover the Forces and Life Forms that Shape our World. Teacher / Student Guide for each program available on our website at www.tmwmedia.comVHS version available on special order only. Please inquire regarding delivery timeframe. |
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| This program illustrates what water can do below the earth's surface, over long periods of time. Using animated and real life sequences, this program explores some important caves, their formations and teaches students how underground water dissolves limestone to form caves, caverns, stalagmites, stalagtites and boxfork formations. 29 min. |
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| All water, even rainwater contains dissolved chemicals which scientists call "Salts." These salts eventually wash down into rivers and streams and eventually find their way into oceans and seas.Subjects covered include: The origin of the sea. The sources of salt. The components of sea water. The salinity of the sea and its variability. How sea life affects sea waters composition. 23 min. |
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PHYSICAL
GEOGRAPHY II: LIFE IN CENOZOIC TIMES
This program looks at the progression of
life forms during the Cenozoic era - the Age of Mammals. This program
show s the development of mammal life forms in the Tertiary and the Quaternary
periods and how life forms adapted to conditions during the Paleocene,
Eocene, Oligocene, Miocene, Pliocene and Quaternary periods. 17 min. |
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| This program explores the Paleozoic Era from the Cambrian time - over 600 million years ago. It looks at common fossils found in the United States and investigates the origin of these animals and how Paleontologists have classified them according to their various characteristics. Student's will discover the fossils record, artists drawings and dioramas of life in the Cambrian, Ordovician, Silurian, Devonian, Mississippian, Pennsylvanian and Permian Periods. Discover plant life, marine life and land life including diatoms, algae, mosses, ferns, cycads, brachiopods, trilobites, crinoids, insects, reptiles, ammonites, sharks and fish. This program also discusses mass extinction theories and shows how the continents have moved. 20 min. |
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| Most people know that water is unevenly distributed over the Earth's surface in oceans, rivers and lakes, but few realize how very uneven the distribution actually is. The World's oceans - 139 square miles of it - contain 317 million cubic miles of Saltwater. The atmosphere is another kink of ocean and moves water vapor around the world until it falls as precipitation. This program examines the Hydrologic Cycle and shows the major water movement in the United States. It also examines how ground water stores and releases water and looks at lakes, major river systems in the World and the World's estimated water supply. 29 min. |
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| People who study Earth's history use a type of calendar called the geologic time scale. It looks very different from the familiar calendar. In some ways it is more like a book and the rocks are its pages. Some of the pages are torn or missing and the pages are not numbered but geology gives us the tools to help us read this book. In this program students will discover the relative time scale, the various forms of life in the rock layers and explore the Numeric Time Scale. This program also discusses the three main concepts, which are important in the study and use of fossils. Subjects Covered Include: Fossils represent the remains of once-living organisms. Most fossils are the remains of extinct organisms. The kinds of fossils found in rocks of different ages differ because life on Earth has changed over time. 32 min. |
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| The Earth is made of rock from the tallest mountains to the floor of the ocean. Rocks are all around most of us. Thousands of different types of rocks and minerals have been found on Earth and this program examines how rocks are continually changing. It looks at the types of rocks - Igneous, Sedimentary and Metamorphic and teaches students how to start their own collection including; how to identify rocks, where to find rocks, collecting equipment and housing and enlarging their collection. 23 min. |
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| This program introduces students to the various forces, which have shaped our earth. These include wind, running water, glaciers, volcanoes, temperature changes, gravity, ocean currents, faulting and folding. The first part of the program introduces students to each of these concepts followed by fifty land formations and information about each formation. 20 min. |
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| Present day glaciers have considerable economic importance in many areas. In the Western United States glaciers are considered to be frozen reservoirs which release water during the warmer summer months. They are also of considerable importance to the irrigation of crops and hydroelectric power and to feeding underground water reservoirs. For this reason scientists have been studying glaciers around the world. Explore how glaciologists are using new scientific tools to study glaciers on the surface of the earth. See how satellites keep track of glacial growth or shrinkage in places like Antarctica, Greenland and Iceland. 23 min. |
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| This program explores the major life forms, which lived during the Mesozoic Era, the time span from 245 million years ago to 65 million years ago. At the beginning of the Mesozoic Era, the major landmasses were joined together into a supercontinent called Pangaea so animals could easily move from place to place. Temperatures were much warmer than they are today and even the ice caps at the north and south poles were absent. In this environment life flourished and we saw the development of huge, reptile-like animals such as the dinosaurs. Life during Mesozoic times also occurred in the oceans and new plant forms, including flowering plants began to spread across the earth. About 65 million years ago most of the larger dinosaurs vanished and this program discusses why this "extinction event" took place. 20 min. |
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| This program explores the watery world of the wetlands. Students learn their origins, the plant and animal life within them and why marshes are important to the food chain and to us. This program brings the Florida Everglades into the classroom, leading students on a tour of the "River of Grass." The various types of wetlands, such as bogs and marshes are discussed, as are the many natural habitats they provide. Students will gain a new appreciation for drinking water as they discover the wetlands role in filtering water pollution. 16 min. |
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