physical+weathering

Examples: rocks that have been broken into more rocks with out changing states of matter

physical weathering: when rocks are broken up by rain, wind, and glaicers biiut hasn't changed state of matter.

© Bruce Molnia, Terra Photographics || Tree splitting a rock apart in the Blue Ridge Mountains. || || Sometimes called mechanical weathering, physical weathering is the process that breaks rocks apart without changing their chemical composition. These examples illustrate physical weathering:
 * ==What is physical weathering?== ||
 * || || [[image:http://www.k5geosource.org/graphics/h7fbtb.jpg caption="physical weathering"]] ||

Swiftly moving water
Rapidly moving water can lift, for short periods of time, rocks from the stream bottom. When these rocks drop, they collide with other rocks, breaking tiny pieces off.