1. CHANGES WITHIN THE EARTHS SURFACE

2. The Earth’s Layers 1. Core - center Inner - solid/ outer-liquid
2. Mantle
thick layer of rock
3. Crust
rocky surface area

3. Land, Air and Water
Lithosphere --surface material (soil, rock, and other landforms)
Atmosphere -- substances above the surface (air and water)
Biosphere -- plants, animals, and other living things
Continents -- 7 separate
Relief -- difference in elevation

4. Plate Tectonics Movement and shifting of the plates
THERE ARE 4 TYPES OF PLATE MOVEMENT

5. 4 Types of Movement
Subduction -- heavier plate slides down toward the mantle
Sea - Floor Spreading -- Magma comes from underneath and moves it away
Converging -- collide and create Mt.
Faulting -- plates slip or grind past each other

6. Changes on the Surface - sect. 3
Weathering - break down at or near the Earth’s surface
1. Mechanical -- rock is actually broken or weakened physically
Example--frost wedging
2. Chemical -- Alters rocks chemical make up
a. Carbonic Acid -- dissolves rock
b. Acid rain -- chemicals combine with water

7. EROSION
Movement of weathered materials including gravel, soil, and sand
Agents -- water, wind and glaciers

8. Water Carries sediment away and this will grind away at the rock
Flood plain -- forms on the sides of rivers
Delta -- flat, low-lying plain formed at the mouth of the river, where the river enters the lake

9. Glaciers Huge slow moving sheets of ice 4 ice ages
Moraines -- piles of rock and debris left by glaciers