• 29 Videos, Slides, Films

• 17 Physical geography
• 14 Study and teaching
• 10 Environmental sciences
• 10 History
• 10 Methodology
• 10 Research
• 9 Biology
• 9 Historical geology
• 9 Plate tectonics
• 8 Chemistry
• 8 Internal structure
• 8 Physics
• 6 Experiments
• 5 Geomorphology
• 4 Anthropology
• 4 Crime
• 4 Politics and government
• 4 Psychology
• 4 Social control
• 4 Sociology
• 4 Volcanoes
• 3 Mathematics
• 3 Science
• 3 Technology

• 29 Films Media Group
• 29 Films for the Humanities & Sciences (Firm)
• 4 Uniview Worldwide
• 3 Cambridge Educational (Firm)
• 2 CNBC (Television network)
• 2 National Geographic Television & Film
• 1 555 Productions, Inc
• 1 Academic Media (Firm)
• 1 Allegro Productions (Firm)
• 1 Carolina Bioloical Supply Co
• 1 Filmoption International (Firm)
• 1 Infobase
• 1 Scorpion TV

• 29 English

• 9 Earth (Planet)
• 5 United States
• 1 Arizona
• 1 Atacama Desert
• 1 Atacama Desert (Chile)
• 1 California
• 1 Chile
• 1 Death Valley (Calif. and Nev.)
• 1 Grand Canyon (Ariz.)
• 1 Great Basin
• 1 Hawaii
• 1 North America
• 1 Rocky Mountains
• 1 Sahara
• 1 Yellowstone National Park
• 1 Yosemite National Park (Calif.)
• 1 Yosemite National Park Region (Calif.)

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