Lesson 1 Vocab
A large sheet of ice.
Glacier
The opening in an Earth's surface that allows magma to reach the surface.
Volcano
When the earth shakes it is called this.
Earthquake
Inner and Outer Core
The process that causes rocks to break into smaller pieces.
Weathering
This is the point inside the Earth where an earthquake begins
Focus
The thickest part of the Earth.
Mantle
Name two details or facts about Earth's crust?
Rocky, outer layer
Thinnest under oceans
Thickest under mountains
Only 1% of Earth's mass
Made of many minerals
This is the mouth of the river that opens towards the ocean.
Delta
This is the liquid rock below Earth's crust.
Magma
The molten rock that erupts from the volcano along with the ash and hot gases.
Lava
Nearest to the focus the energy waves are the most severe and strong. When the energy waves reach the surface, the ground shakes. The further away, the less servere.
Broken down pieces of rock are known as this.
Sediment
The amount of energy an earthquake releases.
Magnitude
This is a scale scientist use to measure the magnitude of earthquakes.
Richter Scale
Name five different ways weathering can happen.
gravity, flowing water, blowing sand, plant roots, animals, chemicals in water/rain, wind
The process that causes eroded sediments to be dropped off in another place.
Deposition
A break in the Earth's crust where rock on one side can move in relation to rock on the other side.
Fault
A device that scientists use to graph and predict if an earthquake will occur.
Seismograph
Name in order the Earth's layer in order from thickest to most thin.
Where was the most severe earthquake at?
Chile, 1960
Magnitude of 9.5