Layers of the Earth
Weathering and Erosion
Fossils and other stuff
Soil
Geologic Column
100
The central portion of the earth
Core
100
The breaking down of rocks by physical process
Mechanical Weathering
100
Preserved remains or impression of an organism that lived in the past
Fossils
100
Organic materials, rock particles, water, and gases
Soil
100
The order of rock layers
Geologic Column
200
The portion of the earth’s interior that extends from the outer core to the bottom of the crust; it makes up 83% of Earth’s volume and 67% of Earth’s mass
Mantle
200
The surface features of a place or region
Topography
200
Information that can be revealed from a study of the fossil record
Discovery of unknown species; understanding of geologic events in Earth’s history; climate, vegetation and organism interaction during a particular time
200
Layer of solid rock beneath the soil
Bedrock
200
The idea that layers found lower in the formation are older than layers found closer to the top of the formation
Law of Superposition
300
The thin, hard outer layer of the earth that is home to all life on Earth
Crust
300
The mechanical weathering in which water in the cracks of rocks freezes and expands, widening the crack
Ice Wedging
300
This occurs in order for a fossil to form
The dead organism must be buried quickly to delay decomposition and the organism must possess hard parts that are capable of being fossilzed
300
List the three basic types of soil in order from largest to smallest
Sand-Silt-Clay
300
Fracture in the earth’s crust along which rocks move
Fault
400
Below the ocean, contains basalt, very dense
Oceanic Crust
400
The erosion or disintegration of rocks, building materials, etc., caused by chemical reactions
Chemical Weathering
400
List and explain the type of erosion that your group studied in class
Answers will vary
400
A cross section of soil layers and bedrock in a particular region
Soil Profile
400
Occurs when a large mass of igneous rock is forced between the existing rock
Intrusion
500
Contains large landmasses, consists of granite, less dense
Continental Crust
500
The action of surface processes that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location
Erosion
500
The importance of understanding soil profiles around the world
Answers may vary, but should include lets us know what types of plant life will grow or what is needed for plant life to grow which improves farming
500
Identify each layer of the soil profile
O- Humus or organic
A-Topsoil
B-Subsoil
C-Parent Material
R- Bedrock
500
The eroded surface that lies between two groups of strata
Great Unconformity