Layers of the Earth
Landform Theories
Plate Boundaries
Rock Cycle
This & That
100
The thinnest layer of the Earth. It is made mostly out of solid rock and broken into pieces called plates.
What is the Crust?
100
He developed the theory of Continental Drift.
Who is Alfred Wegener?
100
When 2 plates come together?
What are convergent boundaries?
100
These are the 3 types of rocks.
What are igneous, metamorphic, and sedimentary.
100
This is hot molten rock inside the earth.
What is magma?
200
It is the thickest layer of the Earth.
What is the mantle?
200
The continents once formed a large land mass called this.
What is Pangaea?
200
This is formed when one plate moves under the other.
What is a subduction zone (or subduction boundary)?
200
This type of rock forms when magma cools.
What is igneous rock?
200
This machine detects waves that transfer an earthquake’s energy.
What is a seismograph?
300
This layer is made of liquid iron and nickel.
What is the Outer Core.
300
The evidence found on different continents that prove the Continental Drift Theory.
What are plant and animal fossils?
300
When plates split or come apart.
What are divergent boundaries?
300
The process that displaces (moves) weathered material to another location
What is erosion.
300
Ocean trenches are caused by this type of plate boundary.
What are convergent boundaries?
400
The Inner Core is made up of this material because of extreme pressure from the other layers.
What is solid iron and nickel?
400
This theory states Earth’s crust is made of broken plates that move slightly as they float on the mantle, driven by the Earth’s thermal (heat) energy
What is the Plate Tectonics Theory?
400
When plates grind or slide past one another.
What is transform boundary?
400
These rocks are made from dirt, sand, and pieces of rock.
What is sedimentary?
400
The breaking down of rocks and other materials on the Earth’s surface can be either physical or chemical.
What is weathering?
500
The _________________ move slightly and float on the mantle.
What are tectonic plates?
500
Plate movement is the result of these currents caused by thermal energy.
What are convection currents?
500
The belt of volcanoes and area of frequent seismic activity in the Pacific Ocean?
What is the Ring of Fire?
500
Marble is this type of rock changed by heat and pressure.
What is metamorphic?
500
All rocks start as this type.
What is igneous?
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