The breaking down of rock into smaller pieces by natural processes.
What is weathering?
100
Wegener's concept that all the continents had once been one super continent.
What is Continental Drift?
100
The height above or below sea level.
What is elevation?
100
Long stretches of time.
What is an era?
100
The location on the surface, directly above the focus.
What is the epicenter?
200
The picking up and removing of rock pieces and other particles.
What is erosion?
200
A model to explain how the continents and the ocean floor could move.
What is plate tectonics?
200
The 5 types of landforms found on Earth's surface.
What are mountains, plains, plateuss, canyons, and valleys?
200
The remains, traces, or imprints of living things preserved in the earth's crust.
What is a fossil?
200
A vibration that travels through Earth and is produced by an earthquake.
What is a seismic wave?
300
Loose pieces of minerals, rock, and organic material.
What is sediment?
300
The three names of the ways plates can move.
What are divergent, convergent, and subduction?
300
Molten rock.
What is magma?
300
An era split into shorter amounts of time.
What is a period?
300
The measure of energy released during an earthquake.
What is magnitude?
400
Physical weathering is the breaking down of rock by physical changes, while chemical weathering is the breaking down of rock by changing its chemical composition.
What is the difference between physical and chemical weathering?
400
The three names of the types of faults.
What are strike, reverse fault, and normal fault?
400
It breaks through the earth's crust and escapes to the surface.
What is magma?
400
The time it takes for half of the mass of the original element to decay.
What is half-life?
400
Seafloor spreading, volcanic eruptions, and earthquakes.
What evidence supports that Earth's crust moves?
500
As a glacier melts, till can be deposited and form a ridge or a mound.
What is a moraine?
500
Movement along a fault line produces pressure and stress on the rock.
Why do most earthquakes occur near or along a fault?
500
Weathered rocks, air, water, living things, and humus.
What things make up soil?
500
Relative age is the age compared to other rock layers, while absolute age is the rock layer's age in years.
What is the difference between relative age and absolute age?
500
Because movement along a fault line produces pressure and stress on the rock.
Why do most earthquakes occur near or along a fault?