Landslides
The pulling force that acts on all objects.
What is gravity?
The outermost layer of Earth.
What is crust?
A mountain that builds up around an opening in Earth's crust.
What is a volcano?
The central opening in a volcano that magma rises up through.
What is a vent?
When plates pull apart, rocks above the fault surface move down. The Sierra Nevada mountains were formed this way.
What is a normal fault?
The rapid, downhill movement of large amounts of rock, soil, and other material.
What is landslide?
An extremely large, moving slab of rock that forms Earth's crust.
What is a plate?
A place where magma has partially melted through Earth's crust.
What is a hot spot?
A kind of volcano that forms where Earth's plates move apart.
What are rift volcanoes?
When plates push together and rocks above the fault move upward. The Himalayas are one example.
What is a reverse fault?
The flow of water over the banks of a body of water and across land.
What is a flood?
A break or crack in Earth's crust there two plates come together.
What is a fault?
A cup-like shape in the earth.
What is a crater?
A volcano that is still erupting.
What is an active volcano?
Rocks slide past each other in different directions. The San Andreas Fault is an example.
What is a strike-slip fault?
Land that becomes too full of water and slides down a slope.
What is a mudslide?
A sudden shaking or trembling in Earth's crust.
What is an earthquake?
Hot, molten rock below Earth's crust.
What is magma?
A volcano that has moved over the hot spot and no longer erupts.
What is a dormant volcano?
What causes rapid changes in the Earth's surface?
What are landslides, volcanoes, and earthquakes?
In California, landslides often occur in these two areas.
What are mountains and along the coast?
A giant ocean wave usually caused by an earthquake on the ocean floor.
What is a tsunami?
A volcano that has steep sides and is shaped like a cone.
What is a Cinder-Cone Volcano?
A volcano made up of layers of lava and ash formed during periods of quiet and explosive eruptions.
What is a Composite Volcano?
A volcano that has wide and flat sides that builds up over time.
What is a Shield Volcano?