8.E.5A.1 Develop and use models to explain how the process of weathering, erosion, and deposition change surface features in the environment

Weathering, erosion, and deposition are processes that act together to wear down and builds up Earth's surface. These processes have occurred for billions of years.

Weathering any process that breaks down rocks and creates sediments. There are two forms of weathering, chemical and mechanical (physical) Chemical weathering is decomposition of rock caused by chemical reactions resulting in formation of new compounds. Mechanical (physical) weathering is the breakdown of rock into smaller pieces.

Erosion the process by which natural forces move weathered rock and soil from one place to another Gravity, running water, glaciers, waves, and wind all cause erosion. The material moved by erosion is sediment.

Deposition occurs when the agents (wind or water) of erosion lay down sediment Deposition changes the shape of the land

Erosion, weathering, and deposition are at work everywhere on Earth. Gravity pulls everything toward the center of Earth causing rock and other materials to move downhill. Water’s movements (both on land and underground) cause weathering and erosion, which change the land’s surface features and create underground formations

The effects of these processes are as follows Changes in shape, size, and texture of landforms (i.e. mountains, riverbeds, and beaches) Soil formation Washes soil, pollutants, harmful sediments into waterways Landslides Causes metals to rust Buildings, statues, and roads wearing away Reduces beaches, shorelines Forms new landforms

Geologic Cycle a collective term used to describe the complex interactions between the component sub-cycles of tectonic, hydrologic, rock, and the biological cycling of elements known as the biogeochemical cycle These various sub-cycles influence each other and may produce natural hazards and processes important to environmental geology such as landslides, earthquakes, volcanic activity, flooding, groundwater flow, and weather The rock cycle is influenced by all the other geologic sub-cycles

Create a foldable… Terms included: WEATHERING, EROSION, DEPOSITION, & GEOLOGIC CYCLE In the flaps… Write the definition Include BOTH TYPES of WEATHERING What did we do to the crayon for WEATHERING, EROSION, & DEPOSITION? Explain and/or draw GLUE IN NOTEBOOKS