Earth's+Changing+Surface

==Earth's Changing Surface (Levels 4-5-6)== There are three clusters of lessons in //Earth's Changing Surface//, listed below. The lessons listed in red are free to download once you enroll in the pilot program and receive a password. After you enroll, our Lending Library will send the other materials you'll need to try out the lessons in a classroom. These include a mini-kit of science materials and hardbound //Student Reference Books// for the unit.

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Students look for evidence of change to the earth’s surface in their local environment, and discuss how some changes happen quickly but most happen slowly. .
 * Cluster 1: Earth's Surface Changes:**
 * ** Lesson 1: Looking for Changes to the Earth's Surface: Part 1 **
 * ** Lesson 2: Looking at Landforms **
 * Lesson 10: Looking for Changes to the Earth's Surface: Part 2
 * Lesson 13: Touring Landforms

Students learn about the key processes of weathering, erosion, and deposition. They build several models to simulate rivers, glaciers, hoodoos, and sand dunes in order to explore how the force of moving water, ice, and wind wear down and build up the earth’s surface. They also conduct investigations to discover how various rocks abrade differently. In each lesson, they apply their new understandings from the explorations to real world phenomena.
 * Cluster 2: How the Earth's Surface Changes:**
 * **Lesson 3:** Rivers Shape the Land and Resource Pages
 * **Lesson 4:** Rivers Shape the Land in Different Ways and Resource Pages
 * **Lesson 5:** Abrasion Wears Down Rock and Resource Pages
 * **Lesson 6:**  **Glaciers Carve the Land**
 * **Lesson 7:** Wind Erodes Hoodoos and Resource Pages
 * **Lesson 8:** Wind Deposits Dunes and Resource Pages
 * **Lesson 9:** Weathering Breaks Down Rock and Resource Pages

Students learn about the layers of the earth and explore how plate movements form mountains and volcanoes. They are introduced to plate tectonics, and use a model to learn how the slow movements of the earth’s plates form mountains.
 * Cluster 3: Movements of the Crust Change the Earth's Surface:**
 * Lesson 11: Plate Movements Form Mountain
 * Lesson 12: Volcanoes Build Up the Earth's Surface