Online animation helps pupils to gain an understanding of indirect sources of water pollution. *4*Science lesson also provides limited sample questions at the end of the topic.*4**4**1*INDIRECT SOURCES OF WATER POLLUTION*2*Explains water pollution is caused when waste materials (from gardens, parking lots, construction sites, landfill areas, logging ares, septic tanks and farmlands) enter our water systems.*4*Explains fertilizer, weed killer and pesticides introduce toxins and nitrates into ground water supplies, polluting our drinking water.*4*Explains large farms produce lots of animals wastes which carry dangerous germs and cause diseases.*4*Explains oil and grease from cars, sand, gravel, salt and other chemicals build up on surfaces and streets. These pollutants end up in our drinking water.*4*Explains dumping of garbage at community landfills pollutes surface water and ground water.*4*Explains that oil, paint cleaning supplies and other toxic materials from cars and batteries contaminate our drinking water and kill fish, animals and plants.*4*Explains it is very important for all of us to learn how to prevent water pollution.*4**4**4*Useful for teachers of science/geography/living environment/earth science.