Volcanoes
What is the definition of volcanoes?
A vent in the surface of Earth that emits ash,gases, or molten lava.
What type of seismic waves arrive first and second?
Prime waves arrive first and secondary waves arrive second
What are three major layers of the earth?
crust, mantle and core
What are the 5 basic characteristics of all minerals?
naturally occurring,inorganic,solid, crystal structure, definite chemical composition
Name one way soil is formed
What materials are ejected from volcanoes?
What type of materials can P waves travel through?
solids,liquids, and gases
What are the two parts of the core called?
Is coal a mineral?
no, coal is not a mineral
What is organic matter?
Humus, the living and dead organisms
Calderas,volcanic necks, lava plateaus
What type of materials can S waves move through?
Only soilds
What elements make up the composition of the core?
Iron and nickel
Name a few minerals that are composed of a single element
copper,gold, silver
List 5 things that can break down rock into soil
weathering,tiny plants, organic matter, erosion, animal and humans
What are the 3 main type of volcanoes?
Shield volcanoes, cinder cones, composite cones
Where does an earthquake first occur?
Focus
What elements form the composition of the mantle?
Name two ways in which minerals form on Earth?
Minerals form as magma or lava cool and harden to become rock
Minerals "precipitate" or crystallize
what are 4 different types of soil?
temperate, tropical,dessert, and artic
What is a batholith?
a body of intrusive igneous rock that has a surface exposure of more than 100 square kilometers
What causes tsunamis?
undersea earthquakes, landslides, volcanic eruptions
Which layer floats on which other layer?
Lithosphere and Asthenosphere
How does the rising of magma result in the formation of minerals and rocks?
It rises towards the earth's surface and it begins to cool and form solid minerals as part of igneous rocks
How does climate affect the soil?