Science- Chapter 7, Lesson 4 - What causes rapid changes to landforms?

fault

A fault is a break or crack where the Earth's crust can move ex: San Andreas fault

earthquake

A sudden movement that causes Earth's crust to shake is an earthquake

volcano

A volcano is a place on Earth's crust where magma reaches the surface

Earthquakes

Earthquakes can cause Earth's surface to change quickly by causing cracks in the ground. It depends oh much damage there is by the duration and how close it is to the surface.

earthquake waves

Earthquakes on the ocean floor can cause giant waves that cause floods

gravity

Gravity causes soil and rock to move downhill in landslides

Landslides can change the surface quickly by:

Landslides change the surface by rapid downhill movement of rocks and soil.

three (3) ways that Earth's surface can change very quickly

Landslides, volcanoes, and earthquakes

plate

Most earthquakes happen at places where Earth's plates meet

melted rock

The lava that flows from a volcano is melted rock

landslide

The rapid downhill movement of a large amount of rock and soil

Volcanoes can change the surface quickly by:

When a volcano erupts, the around it can change rapidly because the lava and ash spread reshaping the land/volcano around it.