The place (underground) where the earthquake begins.
What is the focus?
100
Magma.
What is another name for lava?
100
Faults.
What are deep cracks in the Earth's crust?
100
The process in which weathered rock is moved.
What is erosion?
100
A landform that rises high above the ground?
What is a mountain?
200
A measure of the amount of energy released by an earthquake.
What is magnitude?
200
Magma that has reached the earth's surface.
What is lava?
200
The Pacific Ocean.
What does the "Ring of Fire" surround?
200
These two processes work together to change the Earth's surface.
What are erosion and deposition?
200
Flat land that is higher than the land around it.
What is a plateau?
300
The magnitude of an earthquake at its epicenter.
What does the Richter scale measure?
300
An opening in the earth's crust?
What is a volcano?
300
How the forces deep within the Earth can cause the floors of the ocean to spread and how the continents move.
What does the theory of plate tectonics try to explain?
300
Physical weathering is caused by temperature changes, pushing, pulling, or rubbing while chemical weathering is caused by chemicals that break down rocks.
What is the difference between physical weathering and chemical weathering?
300
This covers 70% of the earth's surface and includes all of the earth's water.
What is the hydrosphere?
400
Huge waves caused by an underwater earthquake.
What is a tsunami?
400
Along the plate boundaries.
What is where volcanoes generally form?
400
The theory that Earth's continents were once joined together, and then they drifted apart over time.
What is the theory of continental drift?
400
The process in which eroded materials are dropped off somewhere else.
What is deposition?
400
The ocean floor, along the coast of a continent.
What is the continental shelf?
500
Get under a sturdy table if you can not get outside.
What is one thing you can do to stay safe in an earthquake?
500
Hot spots birth this kind of island.
What is a volcanic island?
500
Plates move over the hot spot over time, and the hot spot births a new volcanic island.
What causes new islands in an island chain to form?
500
A large mass of slowly floating ice.
What is a glacier?
500
The slope that starts where the continental shelf ends.