Layers of the Earth
The 4 main layers of the Earth
Crust
Mantle
Inner Core
Outer Core
This event is most likely caused by the movement of the Earth's crust along transform boundaries.
The name of hot, melted rock before it exits a volcano.
Magma
What are the three types of rocks?
Igneous rocks
Sedimentary rocks
Metamorphic rocks
Scientists use these to provide information about life and conditions of the past.
Fossils
The hottest layer; made of solid iron and nickel
The Inner Core
The type of boundary formed when tectonic plates move apart
A divergent boundary
The movement of rocks by gravity, wind, and water
Erosion
A rock made from extreme pressure cementing, or gluing, tiny pieces of broken down rock together.
Sedimentary rock
Fossils are usually found in this type of rock.
Sedimentary rock
Middle layer below the crust; the thickest layer of the Earth
The Mantle
When the tectonic plates of the Earth slip or slide, or grind past each other, this boundary is formed.
A transform boundary
The breaking down of minerals and rocks into small pieces (sediments)
Weathering
A rock that has changed from one type of rock to another by great amounts of heat or pressure; may also have a swirled look or different colored bands.
Metamorphic rock
Sedimentation and compaction is the process that will form these in sedimentary rocks.
fossils
These increase as the depth beneath the surface of the Earth increases.
Temperature and Pressure
The type of boundary formed where two tectonic plates come together
A convergent boundary
This is the term used to describe what happens to material that was carried away, or deposited, by erosion.
Deposition
Rocks that are usually found near volcanoes and are formed from the cooling and hardening of hot magma or lava.
Igneous rocks
This can be used to classify rocks on how they are formed.
Dichotomous Key
This causes the movement of material within the Earth.
Thermal energy (heat) which creates a convection current
The movement of tectonic plates caused the formation of these on the ocean floor.
trenches
The name for the process in which rocks are changing from one form to another and back again over many years
The rock cycle
The addition of these is needed over time for a sedimentary rock to be changed into a metamorphic rock.
Thermal energy (heat) and pressure
If a fossil with trails resembling a fish are found, this can tell you the once living creature lived here.
Ancient Sea