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Vocabulary
Lesson 1/2
Lesson 3
Lesson 4
Lesson 5
100
A volcano erupts through this central opening and molten rock flows through it.
What is a vent?
100
The amount of salt that is dissolved in a sample of water.
What is salinity?
100
A vibration that travels though Earth and is produced by an Earthquake.
What is a seismic wave?
100
The breaking down of rock into smaller pieces by natural processes.
What is weathering?
100
The age of a rock compared to the age of another rock.
What is relative age?
200
The central part of earth.
What is the core?
200
The layers of gases surrounding earth.
What is the lithosphere?
200
The scale that rates what people feel and observe when an earthquake occurs.
What is the Mercalli Scale?
200
The downhill movement of materials, such as rock or ice.
What is mass wasting?
200
The remains, traces, or imprints of living things preserved in Earth's crust.
What are fossils?
300
The process used to find the age of a fossil.
What is half-life.
300
When an oceanic plate slides under a continental plate.
What is subduction?
300
This forms when rock layers are squeezed together and pushed upward.
What is folded mountain?
300
A vital part of the food web, this takes place in the soil and enriches it.
What is decomposition?
300
The era when Earth formed and last for almost 4 billion years.
What is the Precambrian Era?
400
The part of the soil that is made up of decayed animals and plants.
What is humus?
400
The direction that the San Andreas Fault is moving.
What is Southeast?
400
A crater that forms when a volcano collapses into itself.
What is a caldera?
400
Where till deposits form a ridge or mound.
What is a moraine?
400
The island that is formed off the coast of Iceland by volcanic activity.
What is Surtsey?
500
The time divisions that makes up an era.
What is a period?
500
The type of currents responsible for continental drift.
What are convection currents?
500
As a result of compression, this forms at a convergent boundary.
What is a reverse fault?
500
The layer of soil beneath subsoil that is partially weathered rock, from which soil is formed.
What is parent rock?
500
A listing of earth's rock layer from oldest to youngest.
What is a geological column?