A
A large amount of water overflowing the sides of a river or drain
A sudden movement in the crust
earthquake
tsunami
A large moving piece of the crust
plate
The opening in the center of a volcano
vent
Earth's outermost layer
crust
A _____ is a giant wave usually caused by an earthquake.
tsunami
soil
_____ form along Earth's moving plates and at hot spots in Earth's crust.
_____ are places in the crust where magma rises almost to the surface.
Floods and _____ change land quickly and may cause _____ to property.
mudslides, damage
Earthquakes occur when plates suddenly move along a _____.
fault
Why do Earthquakes occur?
Earthquakes occur when the plates move suddenly along a fault.
What do landslides and floods have in common?
They can be caused by heavy rains or storms. They can both be dangerous and cause damage to property.
How does a volcano cause sudden changes to Earth's surface?
Volcanoes can change Earth's surface by exploding when it erupts. Lava flows out and hardens on Earth's surface. Ashes from the volcano are released and can create layers on land.