Earths layers
The three main layers of the earth
What are the crust, mantle and core
these are the 3 types of volcanoes
What is a cone, shield and composite volcano
The crust of the earth is formed into these, which move very slowly on a thin layer of melted magma in the mantle
What are plates? (Tetonic plates)
remains of once living things that have been preserved
What is a fossil?
A fuel such as coal, petroleum or natural gas that is formed in the earths crust from decayed organisms.
What is Fossil Fuel?
The thickest layer of the earth, made of magma and some solid rock.
What is the mantle?
Magma flows to the surface through this opening in a volcano
What is a vent?
This is a break in the crust along which rock moves
What is a fault?
The most likely place to find a fossil
sedimentary rock
What is Peat?
The deepest layer of the earth, has an inner and an outer part, the outer is liquid, and the inner is solid.
What is the core?
This type of a Volcano has gentle slopes because it erupts runny lava
What is a shield Volcano
The point underground which movement in an earthquake originates.
What is the focus?
A fossil that is a clue to the activity of an animal that lived long ago.
What is a trace fossil?
Gas made mostly of Methane
What is Natural Gas?
The layer of the earth that has the land and oceans, can be 5 to 70km thick
What is the crust?
This type of Volcano spews thick chunky lava and cinder ash, and it forms steep mountains
What is cone Volcano
The point on the surface right above the focus, where the earthquake is felt.
What is the epicenter?
A fossil that is an imprint left by the outside of a plant or animal
What is a mold fossil?
Another name for crude oil
What is Petroleum?
This inner core is the hottest part of the core. It is solid, and made mostly of these two metals
What are nickel and iron?
What are minerals?
The tool used to measure the strength of an earthquake, and the most common scale on which we measure it.
What is a seismograph and the Richter Scale?
A fossil that is formed by minerals filling the mold, and has the same shape as the original living thing.
What is a cast fossil?
A hard black form of coal, almost entirely carbon, that burns veryhot with little to no ash
What is Anthracite?