Layers of the Earth
Crust
Earth's surface is not just one solid piece. Earth's crust is made of ___________ - sections of crust the size of continents. They constantly move (very slowly) due to Earth's thermal energy.
Tectonic Plates
How does an igneous rock form?
Magma cooling down
What are the 3 ways rocks can change?
Weathering, Deposition, Erosion
____________are preserved remains of plants and animals from the past.
Fossils
This layer is melted nickel and iron and creates a magnetic field
Outer Core
_______ occurs when plates move toward each other and collide
Convergent
Name the 3 types of rocks!
Igneous, Metamorphic, Sedimentary
This happens when water, wind, ice and heat break down rocks into smaller fragments or pieces
What can fossils teach us?
We use them to learn about life and conditions on earth long ago.
This layer is almost the size of the moon, is the hottest, densest part of the Earth. It is as hot as the surface of the Sun. It is made of metal, mostly, iron and nickel.
Inner Core
________ occurs when plates move away from each other. Divide
Divergent
How can I create a Metamorphic rock?
formed from an igneous or sedimentary rock with heat and presure
This happens when the sediment is moved over the earths surface
Erosoin
(Show picture)
What can this picture tell us about the top layer of fossils and the earth?
The land was once covered in ice and snow
The largest layer of the earth and where you can find magma.
Mantle
_________ occur when plates slide past each other.
Transform
How can I create a sedimentary rock?
Other rocks (igneous, sedimentary, or metamorphic) breaking down through weathering, erosion, or deposition to make sediments and the the sediments are compacted and cemented together
This happens when the sediment stops moving and is put into a new place
deposition
(Show picture)
What can this picture tell us about the middle layer of fossils and the earth?
Dinosaurs roamed the earth
Name the 4 layers in order from inside out.
Inner Core, Outer Core, Mantle, Crust
As the plates move they create different things.
Convergent plates create _______
Divergent plates create _________
Transform plates create ___________
1. Mountains and Volcanoe
2. Mountains
3. Earthquakes
What processes drive the rock cycle?
1. Weathering, erosion, deposition
2. Temperature or Heat
3. Pressure
Give me an example of each: Weathering, Erosion, Deposition
Answers may vary
(Show picture)
What can this picture tell us about the bottom layer of fossils and the earth?
Animals were either swimming or crawls on the crust