Layers of the Earth
This layer is made up of iron and is very dense (thick).
What is the Outer Core?
This era is known as "the age of the dinosaur".
What is the Mesozoic era?
When tectonic plates move apart it is called this type of boundary.
What is a divergent boundary?
Thius type of rock is also known as "fire rock".
What is Igneous rock?
This tool is used to determine the magnitude (extent or intensity) of an earthquake.
What is the Richter Scale?
This layer is the largest layer of the Earth.
What is the mantle?
The Appalachian mountains were formed during this era.
What is the Paleozoic era?
These are the two types of divergent boundaries.
What is oceanic and continental?
Time, heat and pressure transforms sedimentary and igneous rock into this type of rock.
What is metamorphic rock?
Magama which reaches the Earth's surface is referred to as this.
What is lava?
Volcanoes can occur where there is a weakness in this layer.
What is the crust?
This is the name given to the current Geologic era.
What is the Cenozoic era?
When tectonic plates collide it is called this type of boundary.
What is a convergent boundary.
These naturally occurring, pure, non-living substances found in rock number about 3000.
What are minerals?
This the name given to the fault or rupture where Earthquakes begin to occur.
What is the hypocentre?
This layer is made of liquid, molten rock.
What is the Outer Core?
The end of this era saw the largest mass extinction in history that wiped out approximately 90% of all animal species.
What is the Paleozoic era?
The friction caused by this type of plate movement may be eventually cause violent earthquakes.
What is a transform/sliding boundary?
This type of rock is formed by the deposition of material at the Earth’s surface and within bodies of water.
What is sedimentary rock?
This horseshoe-shaped zone encircling the Pacific Ocean, is known for its high concentration of volcanoes and earthquakes.
What is the Ring of Fire?
In this layer, temperatures and pressures so great that the metals are squeezed together and are not able to move
What is the inner core.
This era began 4.6 billion years ago and lasted for 4 billion years.
What is the Precambrian era?
When two of these plates bang into each other, they get pushed up and make mountains.
What is continental plate boundaries?
The total contribution of this type of rock is estimated to be only 8% of the total volume of the Earth's crust.
What is sedimentary rock?
Most of the volcanic activity on Earth occurs here.
What is under water?