1. The Rock Cycle *You will distinguish a rock from a mineral * Describe the rock cycle and some changes that a rock could undergo

2. A mixture of minerals, rock fragments, volcanic glass, organic matter, or other natural materials Rocks exist EVERYWHERE! They are under the depths of the oceans and high in mountain ranges, to the landscape beneath your feet!

3. To show how rocks change through time, scientists have created a model called the rock cycle

4. Igneous Metamorphic Sedimentary

5. Weathering & Erosion Weathering is when pieces of rock are eroded and carried away by wind, water or ice

6. Wind Erosion

7. Water Erosion

8. Wind Erosion

9. Glacial Erosion

10. Glaciers

11. Chemical Element of the Rock They are not lost or destroyed- They have just been broken down and moved somewhere else We call this CONSERVATION OF MATTER (matter cannot be created nor destroyed) THE ROCK CYLE DOES NOT CREATE OR DESTROY NEW ROCKS! The elements are just redistributed in other forms

12. The law of conservation of matter

13. Layering of Rock James Hutton, from Scotland, recognized that rocks have a pattern of horizontal layering

16. But some of the rocks are tilted and partly eroded Generally the youngest layer of rock is on top- but not always. Earth is constantly moving and changing

22. How is a rock different from a mineral? Minerals are naturally occuring crystalline solids with definite chemical compositions. Rocks are most often combinations of mixtures of more than one mineral or other natural materials put together.