juvenile films

Presents an introduction to the unique features of the Earth's topography, showing how mountains and chasm form, as well as providing information on forces that change its surface, such as earthquakes, volcanoes, and water.

Describes the formation of soil, the components of different kinds of soil, how soil sustains plant and animal life, and how farmers and others are using modern technology to fight erosion; and presents a hands-on demonstration about the size and permeability of soil particles.

Explains what causes infectious and noninfectious diseases; describes the functions of skin, mucus, the inflammatory response, and the lymphatic system in protecting the body from disease; talks to a doctor about white blood cells; and presents an experiment on hand washing.

Presents an examination of the characteristics of simple organisms called viruses, explaining how they lay dormant until they latch on to a host cell and how they spread.

Describes the sources and uses of several renewable and nonrenewable natural resources; explains how they are recycled and cleaned; presents a hands-on investigation of different kinds of particles that can be observed in the air; and visits a geothermal plant to show how volcanic heat can be turned into electricity.

Explains how scientists find fossils, determine their ages, preserve them, and use them to learn about the past; takes viewers on a trip to Petrified Forest National Park in Arizona; and shows how to create simulated environments and test them for their ability to preserve remains.

Discusses how fossil fuels such as coal, oil, and natural gas are used, how they are found, and how their supplies can be preserved, visiting an oil platform and demonstrating an alternative to the use of fossil fuels to create plastic.

Examines the geological time line, describing the Precambrian, Paleozoic, Mesozoic, and Cenozoic eras, including their forms of plant and animal life; shows how geologists study the rock layers under the ocean floor; and presents a hands-on investigation of how geologists "read" unusual formations in rock layers.

Students in grades five through eight travel along as visitors from outer space investigate the variety of land formations on Earth, and the forces that affect them. Includes a hands-on demonstration.

Explores light and its properties such as wavelength, reflection and absorption.