These scientists study the forces of that make and shape our planet. Particularly they study the physical and chemical characteristics of rock, the material that forms Earth's hard surface.
What are geologists.
100
There are 7 landmasses on Earth known as ____________.
What are continents.
100
Below the first layer of the Earth lies this structure.
What is the mantle.
100
Underneath the mantle is this liquid layer of molten metal.
What is the outer core.
100
Who is credited with continental drift theory?
Who is Alfred Wegener?
200
These are the four main structures of the Earth. Name in order from the one we are currently on inwards towards the center.
What are the crust, mantle, outer core and inner core.
200
What is the largest continental plate?
What is the African plate?
200
The lower part of the crust and the uppermost part of the mantle are very similar. Together they form a rigid layer called the ___________ a layer of hot rock just under the crust.
What is the lithosphere?
200
The composition of THIS is mostly oxygen, silicon, aluminum, calcium, iron, sodium, potassium, magnesium.
What is the Crust?
200
Name one piece of evidence used to form the theory of continental drift.
Fossils, Africa and South America fit together, Climate (glaciers in Africa), and Landforms (Mountain ranges)
300
Heat makes matter
a) less dense
b) more dense
c) doesn't change it?
What is less dense?
300
The crust beneath the ocean is known as
What is oceanic crust?
300
In greek "litho" means....
What is "stone"
300
This is the force pushing on a surface or area.
What is pressure.
300
What does Pangea mean?
What is "all lands."
400
Geo-science divides the forces that change the surface into these two groups.
What are constructive and destructive forces.
400
The name of this plate that is the largest oceanic plate is known as....
What is the Pacific plate?
400
In Greek, "asthnes" means this.
What is weak?
400
About 20 meters down below the surface this starts to increase.
What is temperature?
400
The creator of the theory of continental drift did not understand or know what was underneath the lithosphere that is responsible for the movement of the plates. These are the forces that push and pull the plates.
What are plate tectonics?
500
What are the three forms of heat transfer?
Conduction, radiation and convection.
500
The Earth's crust is made up primarily (mostly) of two different types of rock.
What are basalt and granite?
500
The material in this part of the mantle flows slowly... The lithosphere floats on top.
What is the asthenosphere.
500
This destructive force produces seismic waves which geologists use to answer what is inside the earth?
What are earthquakes.
500
What is a Glossopteris?
What is a fern like PLANT that flourished 250 million years ago. (Plant - Ancient - Fossil)