Chemical Layers of the Earth
Physical layers of the Earth
Moving Earth
Random
Which Layer?
100
Of the three chemical layers, what is the densest layer of the Earth?
Core
100
How many physical layers of the Earth are there?
Five
100
The lithosphere is broken into a series of what type of plates?
Tectonic plates
100
What is the hottest layer of the Earth
Inner Core?
100
Which layer is the slow-flowing lower part of the mantle?
What is the mesosphere?
200
What is the outer-layer of the Earth called?
Crust
200
What is the outermost layer called?
Lithosphere
200
What type of currents control tectonic plate movement?
Convection currents
200
What is the only liquid layer of the Earth?
Outer core
200
Which compositional layer of Earth is the thinnest?
What is the crust?
300
What are the two types of crust, and which is the thickest?
Continental & oceanic.
Continental is the thickest
300
What is the innermost layer called?
Inner Core
300
In what physical layer do convection currents occur?
What is the Asthenosphere?
300
Name one piece of evidence scientists use to explain the composition of the core.
Weight of the Earth
Earths magnetism
300
These 2 physical layers make up a single compositional layer.
What is the core?
400
This is the thickest layer of the Earth.
Mantle
400
What is the name of the layer between the Mesosphere and the Lithosphere?
Asthenosphere
400
What are the three types of energy transfer?
Conduction, convection and radiation
400
What is the thickness range of the crust?
5-50km
400
One of my layers is liquid, & one solid; but we are the same?
What is the core?
500
What elements is the core made of?
Iron & Nickle
500
Name all five physical layers of the Earth
Lithosphere, Asthenosphere, Mesosphere, Outer Core, Inner Core
500
What would happen to convection currents if the Iron and Nickle layer of Earth experienced a rapid cooling?
Convection currents would cease as they rely on heat from the core.
500
How do scientists use seismic waves as evidence for the different layers of the Earth?
Seismic waves travel at different speeds at different depths, indicating a difference in composition/density
500
Name the 2 types of layers that overlap.
What are compositional and physical?
600
According to this map, where can you infer that mountains are being formed?
between the Cocos Plate and the Caribbean Plate
600
Tectonic plates can be made of continental crust or oceanic crust, or a combination of the two. Besides their location, how else are these two kinds of crust different?
Continental crust is thicker than oceanic crust.
600
What are the mechanisms that have been proposed to explain the movement of Earth’s tectonic plates?
mantle convection, ridge push, and slab pull
600
Satellites can measure the small distances that GPS ground stations move over time. In what units is the movement of tectonic plates measured?
centimeters/year
600
T or F At a divergent boundary, plates separate.
True