Earth's spheres
What are the names of the Earth's spheres?
ATMOSPHERE
HYDROSPHERE
BIOSPHERE
GEOSPHERE
What's the name of the super continent that existed more than 200 million years ago?
Its name is Pangea.
Name the layers inside the Earth.
CRUST
MANTLE
INNER CORE
OUTER CORE
Name the two types of processes involved in relief formation.
External and internal processes.
What happens during erosion process?
Erosion moves broken rock from one place to another. It gradually changes the land's shape.
What is the atmosphere?
It is layer of gases that surrounds the earth. It is made up of air (rain, snow and wind form here).
What happened to Pangea?
Pangea split up, forming the continents as we know them nowadays.
What is the name of the huge "pieces" of rock that form Earth's relief that are in constant motion?
Tectonic plates.
Where do internal agents occur?
They are registered in the interior of the Earth, because of the heat that is stored inside the layers underneath the crust.
Weathering, erosion, transport and sedimentation (deposition).
What is the hydrosphere?
It is the layer that includes all the Earth ́s water: oceans, rivers, lakes, clouds and groundwater. There is fresh water and salt water.
What does it mean "not to be fixed"?
That they are moving because of the lithospheric / tectonic plates.
What catastrophes are a result of tectonic movement?
Earthquakes and volcanoes.
Where do external agents occur?
They can be observed on the surface of the Earth.
What happens during transport process?
Materials are transferred through gravitational energy to lower regions, where they are deposited. Water and wind carry them.
What is the biosphere?
It consists of all living things and the places where they live, (biotic and abiotic elements). It is all the ecosystem.
How do we call the theory proposed by Alfred Wegener?
Continental Drift Theory.
How did the continental division take place?
First, Continents were all together in a same land mass, called Pangea. Second, Pangea was split into two: Godwana and Laurasia.
Third: The two continents split into more: seven continents.
What are the internal geological agents involved in relief formation?
The main internal geological agent is the movement of the lithospheric plates. (Plate tectonics).
What is a volcano?
A volcano is an opening in the Earth's surface. Usually found in a mountain, the opening allows gas, hot magma and ash to escape from beneath the Earth's crust.
What is the geosphere?
It is the layer that is made up of rocks, soil and sediments that make the Earth ́s land.
How did Wegener call the continental mass and ocean?
Pangea.
Phantalassa.
Which era did Pangea split up into smaller separate continents?
Jurassic period.
What are the external geological agents that modify relief?
External agents that carry out this process are: water, ice, wind, the atmosphere and human beings.
What is an Earthquake?
An earthquake is an intense shaking of Earth's surface. The shaking is caused by movements in Earth's outermost layer that is floating on the mantle (asthenosphere).