This short documentary shows how a city's water supply is purified at a filtration plant. The complex system of the underground mains that supply all parts of the city with water is also illustrated, as is the safeguarding of water supplies on trains, ships and aircrafts.
This short film serves as a cautionary tale to farmers who recklessly cut down trees on their land. When prairie farmers engaged in this practice to facilitate plowing, they discovered that the trees had served as windbreaks protecting top soil from erosion. The Dominion Department of Agriculture's experimental station at Indian Head, Saskatchewan, cultivated acres of young trees for distribution to farmers.
In this short fiction film, Estelle, the scientist in charge of a research project on water, is getting ready for a conference with the help of her "intelligent" satellite Zenon. But a teenage hacker has found an illegal way to consult Zenon's files. Things look very bad when the hacker accidentally infects Zenon with a virulent computer virus.
This 1950s' film looks at the measures to preserve water flow from the Rocky Mountains. With the steady falling of the water table, the exploitation of timber stands and the recession of glaciers, water conservation was an urgent concern of the Alberta and federal governments.
These vignettes from 1949 cover various aspects of life in Canada and were shown in theatres across the country. Subjects included here are: Man-Made Niagara: the construction of the Des Joachims hydro plant on the Ottawa River adds to Ontario's power resources. Irrigation Revitalizes Dust Bowl: In the southern Alberta drylands, the St. Mary's River is being harnessed to provide life-giving irrigation for prairie crops. Underwater Harvest: Lobster season in New Brunswick provides choice seafoods for epicurean tables.
A dramatized presentation of the work of the Maritime Marshland Rehabilitation Administration in the reclaiming of flooded agricultural regions along the Bay of Fundy. Through the account of a dike-keeper, the film describes the destruction that follows the breaking of long-neglected dikes during autumn rains and shows how M.M.R.A. engineers are cooperating with New Brunswick land-owners in the big task of keeping at bay the inundations of the sea.
This short documentary follows students from Toronto's Jesse Ketchum School as they take steps towards the greening of their schoolyard. Along the way they get how-to advice and inspiration from kids across the country; from Pauline Public School, where students raised $10,000, to Broadacres School, where a family of wild ducks found a home in their pond.
A Crack in the Pavement is a two-part video set that shows children, teachers and parents how they can work together to 'green' their school grounds and make positive changes in their communities
This short documentary shows initiatives kids take to transform bare pavement into dream schoolyards. Some grow trees for shade, and vegetables for a food bank. Others build a greenhouse or a rooftop garden, while others yet construct a courtyard pond as an outdoor classroom and refuge for wildlife.
A Crack in the Pavement is a two-part video set that shows children, teachers and parents how they can work together to 'green' their school grounds and make positive changes in their communities.
A documentary about the chemical research that was used against crop-threatening insects, plant diseases and weeds in the 1950s. The film shows laboratory experiments at a government research station and poses questions about the ultimate effects of toxic substances on food-producing soil.
Ages 11 to 13
Geography - Natural Resources
Health/Personal Development - Disease Prevention
Science - Environmental Science
Have students compare current water-purification procedures in Canadian cities with the procedures outlined in the film. Have students investigate the water crisis in Walkerton, Ontario (2000) and explain what went wrong and how a situation such like that can be prevented in the future.