The wearing down of rocks by friction of water or wind.

The process in which roots grow into cracks in rocks and force the cracks open as they continue to grow. 

The breaking apart of rock due to pressure of water freezing in the cracks.

The process of breaking rocks into smaller pieces.

The process of moving weathered rock from one place to another.

the new placement of sediment after erosion has taken place.

Small pieces of rock that have been broken down by the process of weathering.

A natural resource that cannot be replaced easily and will run out someday.

A natural resource that can be replaced easily or will never run out.

The process plants go through to make their own food is called

Eats other organisms; a living thing that needs to eat to obtain energy.

The gas that is given off by plants and used by humans to breathe.

The gas that is given off by humans and used by plants to go through photosynthesis.