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Bullfrog Films
P.O. Box 149
Oley, PA 19547
Tel: 610/779-8226
Fax: 610/370-1978
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Earth Science DVDs & Videos
- All Mapped Out
The Rough Scientists make a map, paper and ink, and a sound-recording device.
- America's Lost Landscape: The Tallgrass Prairie
Tells the story of one of the most astonishing alterations of nature, the North American tallgrass prairie.
- Arid Lands
A moving and complex essay on a unique landscape of the American West, the area around the Hanford Site in Washington State.
- Baked Alaska
Looks at the battle over the Arctic National Wildlife Refuge (ANWR) in the context of Alaska's accelerated warming.
- Being Caribou
A filmmaker and biologist follow the Porcupine Caribou Herd from central Yukon to the herd's calving grounds in the Arctic National Wildlife Refuge.
- Bugs and Barometers
The Rough Scientists make anti-bacterial cream, a microscope, and a weather station.
- A Crack in the Pavement
2-part series on how greening school grounds improves not only the school, but the surrounding community.
- Devils Tower
The Lakota struggle to protect their sacred site from climbers and other encroachers.
- Digging In
Jesse Ketchum School greens their schoolyard.
- El Caballo
The history, ecology, and current plight of the wild horse in North America.
- El Caballo (Short Version)
The history, ecology, and current plight of the wild horse in North America.
- Exotic Terrane
Geological discoveries in the Pacific Northwest.
- Expedition Earthscope
America's turbulent geologic story and earth scientists' biggest push yet to uncover its deepest secrets.
- Feel the Heat
The Rough Scientists make ice, a thermometer and sunblock.
- Fighting Fire With Fire
Raises questions about conventional methods of fighting fire, and whether decades of suppressing fire have simply made matters worse.
- Gaia
A portrait of James Lovelock, originator of the theory that the earth is a living organism.
- Grasslands
The ecology of North America's grasslands.
- The Green Zone
The riparian zone: as important to the river as the water itself.
- Growing Dreams
An inspirational overview of school ground greening.
- The Harriman Alaska Expedition Retraced
Two scientific expeditions to Alaska, 100 years apart, give us an unparalleled view of environmental damage and the change in society's attitudes.
- Hidden Fury
The danger posed by the New Madrid earthquake zone along the Mississippi River.
- Hopi Land
The Hopi fight to preserve their land and water from strip mining.
- In Search of the Edge
Flat earth theory proved! A lesson in critical thinking and media literacy.
- In the Light of Reverence
A stunning portrait of land-use conflicts over Native American sacred sites on public and private land around the West.
- In the Light of Reverence (Classroom Version)
Three separate stories of land-use conflicts over Native American sacred sites on public and private land around the West.
- Keepers of the Coast
Surfers organize to save the ocean and the coastline.
- Mediterranean Mystery
The Rough Scientists work out their latitude and longitude, make insect repellent, and a radio from an old saucepan.
- Monumental
A stirring portrait of America's greatest environmentalist.
- Mount Shasta
The Wintu aim to keep their sacred spring on Mount Shasta from harm.
- Nanga Parbat
Pakistan's fast-growing mountain, Nanga Parbat, challenges geological theory.
- Nature, Science, and the Environment
Daniel visits a recycling plant, learns about butterflies, visits a waterfall, goes on an eco-adventure and studies rocks.
- On Nature's Terms
Coexisting with predators and protecting their habitats.
- Our Planet Earth
Astronauts share their perspective on the earth
- Power Supplies
The Rough Scientists produce electricity and create a small pharmacy.
- Rough Science
10-part series in which five scientists on a tropical island cooperate to solve a series of scientific challenges using only their knowledge, ingenuity, and whatever is at hand.
- Rough Science (DVD Version)
The entertaining 10-part science series on 3 DVDs
- Rough Science DVD Disc 1
Episodes 101-103 of the entertaining science series.
- Rough Science DVD Disc 2
Episodes 104-106 of the entertaining science series.
- Rough Science DVD Disc 3
Episodes 107-110 of the entertaining science series. All shot on the island of Capraia in the Mediterranean.
- The Sacred Balance
4-part series that celebrates the meeting of science and spirit.
- The Salmon Forest
Reveals the fragile connection between salmon, bears, trees, and people in the NW rainforest.
- The Science of Celebration
The Rough Scientists make fireworks and some musical instruments.
- The Shaman's Apprentice
Ethnobotanist Mark Plotkin's quest to preserve the ancient wisdom of Amazonian shamans.
- Silent Sentinels
Was the unprecedented mass coral bleaching in 1998 proof of global warming?
- Simmering Shutterbugs
The Rough Scientists devise a camera, make a compass, and dye a flag.
- Sun and Sea
The Rough Scientists build an underwater light and generate electricity to top up a battery.
- Sustenance and Sayonara
The Rough Scientists make soap and toothpaste, and put food on the table.
- Swim for the River
The story of the Hudson, and the battle to save it, are told as Chris Swain swims the entire length of the river.
- Time and Transmitter
The Rough Scientists build a transmitter, make a portable clock, and a botanical kite.
- Turning Down The Heat
Renewable energy sources and energy conservation are the solution to global warming.
- Unconquering the Last Frontier
Chronicles Native Americans' struggle to survive in the midst of hydroelectric development.
- When Is Enough, Enough?
A small Cree band in Alberta battles major oil companies for their land which lies on top of one of the world's richest oil deposits.
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