1. RAP: 1)________ is a form of mechanical weathering that occurs when a small amount of water enters a tiny crack in rock. 2) _______ A river of moving ice.

5. 1. What is a glacier? 2. What are the two types of glaciers? 3. What do glaciers create? 4. What is plucking? 5. What is a kettle? 6. What is a till? 7. What is a moraine?

6.  1. Glacier-a river of moving ice

7.  2. Two types of glaciers  Alpine glaciers-form in mountainous areas  Continental glaciers-spread across continents

8.  3. A glacier will form a U shaped valley

9.  4. Plucking is glaciers move gravel, boulders, and sand along the bottom and side of the glacier

10. 5. Kettle- small depression that forms when a chunk of ice is left and forms a lake

11.  6. Till- a mixture of sediment that a glacier deposits made of sand, silt, clay and boulders

12.  7. Moraine-common till deposit

13. Home work 1.Name two types of glaciers. 2. When plucking occurs what do Glaciers move?

14. Review Questions 1. What processes form a sedimentary rock? 2. What test determines if a mineral is shiny or dull? 3. What is the grinding action of rocks into smaller pieces? 4,. What is the type of igneous rock that cools on Earth’s surface? 5. What are small particles of rock that have been broken down?