Curated Video
How Is Water Treated In Sewage Works | Environmental Chemistry | Chemistry | FuseSchool
The aim of sewage treatment should be to return nutrients back to the soil, but without any harmful pathogens. Composting toilets do this, making use of aerobic bacteria to achieve a pathogen free fertiliser. However, most toilets are...
SciShow Kids
Make the Most of Compost!
What do decomposers and a compost have in common? Decomposers help a compost break down, or decompose, things that can biodegrade and become similar matter. Watch a video that explores the science of composts.
American Chemical Society
How Worms Turn Garbage into Compost
Worm feces is gold to gardeners and farmers. Earthworms have a special enzyme that allows them to break down the cellulose found in plant materials. An episode of a longer science playlist explores this process, which creates...
California Academy of Science
Reducing Food Waste
The average American creates more than 240 pounds of food waste every year. Are there ways to reduce that number? The eighth lesson in the 13-part series covering Our Hungry Planet introduces multiple ideas for reducing food waste. It...