Physical Processes Inside the Earth
Cooling rock builds up to form lines of ridges
What are underwater mountains called?
Processes that breaks rocks down into pieces.
What is weathering?
Provides life to people and animals.
What is oxygen?
Earth was one huge landmass.
What is Pangaea?
Shapes and types of land.
What are landforms?
Cracks in the Earth's crust.
What are faults?
Process by which water, wind, rain or ice wears away land and carries the material to another place.
What is erosion?
North Pole, South Pole, lakes, rivers, and rain.
What are sources of fresh water?
The movement of continents.
What is plate tectonics?
Landforms that rise usually over 2,000 feet above sea level.
What are mountains?
Tremendous pressure and heat build up. Molten rock moves upward, sometimes exploding onto the surface.
How is a volcano produced?
wind, rain and ice
What are three causes of weathering?
The Earth is surrounded by a thick layer of special gases.
What is the atmosphere?
The outer skin of the Earth, called crust, is broken into huge pieces.
What are plates?
A large elevated piece of land.
The crust cracks and splinters from the pressure.
What happens when plates push against one another?
Tiny pieces of rock combine with decayed animal and plant material to form soil.
What does weathering help create?
97% of Earth's water is salty.
What is ocean water?
Below the plates is a layer of rock, hot enough to be fairly soft.
What is magma?
An opening in the Earth's surface from which lava flows.
What is a volcano?
When the crust moves along faults, it releases great amounts of energy, causing the ground to shake.
What is an earthquake?
These two processes creates new landforms.
What is weathering and erosion?
Fresh water stored in the soil and in rock layers below the surface of the Earth.
What is groundwater?
Some ocean plates move apart and magma leaks through cracks in the crust.
When the vast plates move in different directions?
75% water and 25% land
What makes up the Earth's surface?