When rocks are broken down into smaller and smaller pieces by physical processes is..........

What is friction from wind, moving water, and waves abrades and breaks down rock.

When chemical reactions change the materials that hold rocks together, forming new substances.

When free oxygen (oxygen NOT combined with other elements) combines chemically with metallic elements and forms substances called oxides.

When water combines with minerals in rock and chemical breakdown occurs.

Water that contains carbonic acid and dissolves minerals is called ______.

When water freezes in rocks and cracks it open...

Biological weather is what type of weathering?

Hydrolysis is what type of weathering?

Oxidation is what type of weathering?

Animal/plant actions are what type of weathering?

Thermal stress is a type of ________ weathering/

Acid rain is what type of weathering?

Abrasion is what type of weathering?

Sediment could take thousands of years to be made.

The older the rock is, the _____ it is.

The more resistant/harder the mineral in rock is, the slower it weathers.