Earth's Layers
How many layers of Earth are there?
3
What are the three types of volcanoes?
Cinder, Shield, Composite
Fault
How many types of plates are there?
3
When a volcano falls onto itself, it creates a large basin, called a _____?
What is the layer of Earth that we walk on?
The Crust
What is the rocky tube at the top of a volcano called?
What is the point underground where the movement of an Earthquake first takes place called?
What is the place directly above called
The Focus and the Epicenter
When two plates move away from each other, what happens?
New Ocean-floor Crust Forms.
What are two characteristics of a composite volcano?
medium size, made of layers of lava and cinder, steep peaks, gentle slopes.
What is the center of the Earth Called?
The Core
Name at least two characteristics of Cinder Cone Volcano
Small, made of hardened lava chunks called cinder, step sides, less than 300 meters tall.
What tool is used to measure earthquakes? (Not the name of the scale.. THE TOOL)
Seismograph
When two plates move toward each other, what happens?
Mountains form
What is the thickest layer of Earth?
The Mantle?
Name two characteristics of a shield volcano
Large, gentle slopes, form from runny lava.
What is the scale that measures Earthquake on a scale of 1-6 called?
Richter Scale
Earthquakes!
Melted rock that reaches Earth's surface is called what?
Lava
How many parts is Earth's Core split into?
2
What are the two ways that volcanoes change the land?
They build up land and add nutrients to the soil or destroy land and burn trees and homes.
The Mercalli Scale rates earthquakes on a scale using what?
What continent do most Earthquakes occur?
South America
Melted rock inside Earth is called what?
Magma