Earthquake
If the ground shakes under a lake or ocean, what might happen?
A tsunami could form
Wind erosion happens when wind _______ sand or soil and moves it to another place.
Picks up/ blows
An opening in a volcano caves in, it forms a ______
crater
A mineral is a natural, solid material found in the Earth. True or False?
True
The Earth is made up of layers. What is the outer layer we live on called?
Crust
If you lived in California, why might schools practice earthquake drills more often than schools?
because earthquakes happen more often in California
Name three things that can cause erosion.
Wind, water, ice, people
What is melted rock called when it is still under the ground?
Magma
Minerals are found in this natural material.
Rocks
What might happen if too much pressure builds up in the magma chamber?
Volcanic eruption
Earthquakes happen when large pieces of Earth’s crust move. What are these pieces called?
Plates
After a big rainstorm, a small path of soil washes down a hill. What caused this erosion?
Water from the rain.
How can volcano eruptions sometimes help the Earth?
They create new land and fertile soil
What is this process called when waves slowly break down and carry away rock?
Erosion
When plates push, pull, or slide past each other, this can cause what?
Earthquakes
Why don’t all plate movements cause big earthquakes?
sometimes plates move slowly and gently without strong shaking
____ and ____ can slowly wear away land. What is this called?
Wind and Water
Volcanoes can create ______ when lava cools and turns into rock .
new land
What earth material is smaller than silt
Clay
How are Earth’s layers, tectonic plates, earthquakes, volcanoes, and erosion all connected?
They all change the earths surface
This state has many earthquakes because it sits on a major fault called the San Andreas Fault.
California
People _______ near oceans to help protect cliffs from strong waves.
build sea cliffs
This is the large underground space where magma is stored before an eruption.
Magma chamber
Why do some rocks feel rough while others feel smooth?
Because they are made of different minerals and formed in different ways.
The layer between the crust and the core is called the ______.