Athabasca oil sands is an area in Canada where there is a lot of sand and clay, and it has some very special and important things that are called oil, which is like a really thick and sticky liquid that we can use to make things go, like cars and planes. The oil is stuck inside the sand and clay, so people have to work really hard to get it out.
To do this, they use big machines to dig up the sand and then put it in big trucks. Then they add some special chemicals and heat to the sand to make the oil come out. Once they have the oil, they clean it up and get it ready to be used in all sorts of things.
This helps people make things go, but it can also be not so great for the environment because it can make the air and water not so clean. So people are working on finding ways to make it better for the earth when they get the oil.