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What is the shape of the Earth?
Sphere- shaped like a ball with all points on the surface equal distance from the center. Earth is not a perfect sphere. It is flattened at the poles.
This layer of the Earth is the thinnest layer and is made of Silicon, Iron, Aluminum and Calcium.
crust
This layer of the Earth is solid and is made of iron and nickel.
inner core
This is the molten layer under the crust that is 2,900 km thick.
Mantle
The rigid layer of the crust that is made up of the plates.
lithosphere
The partially molten (magma) layer of the crust.
asthenosphere
This sphere includes all the air and gasses on and around the Earth.
atmosphere
The sphere that contains all of the water on Earth.
Hydrosphere
This sphere is made up of all life on Earth.
Biosphere
This sphere of Earth is made up of all the rocks, minerals, soil and landforms on Earth.
geosphere
The lowest layer of the atmosphere where weather occurs is called the
troposphere
Name the layers of the atmosphere in order from closest to the Earth to farthest.
troposphere, stratosphere, mesosphere, thermosphere, exosphere
What percentage of the Earth is covered in water
70%
What percentage of the water on Earth is saltwater?
96%
Which is the largest ocean?
Pacific ocean
What are the two types of crust?
Oceanic crust and Continental Crust
