I'm a rock I get weathered every day. more and more of me chip away. Weathering is when things like animals, pants, people, ice, and water rub against me. Then after millions and millions of years i'll be nothing more than a grain of sand. Even though I'm a big boulder now.
erosion is when things like water, people, and wind move me from one place to another. As you can see I'm smooth erosion makes me smooth.
I'm being eroded the water carries me away.
deposition is when you stop being eroded and stay where ever you got deposited until you get eroded again.