Earth's Layers
How many layers does the Earth have?
Four layers
What do the terms "slow change" and "Gradual change" mean?
A slow is a fast change that can occur with little to no warning.
Gradual change can take years and years to occur.
What is the minimum height for a mountain to be considered a mountain and not a hill?
300 meters
What is the name of the kind of plate boundary where two plates slide past each other?
Transform boundary
What layer of the Earth do the plates rest on?
The Mantle.
This sudden weather event can blow trees down and cause damage.
A tornado
What is the name of the location where these plates meet?
Plate boundaries.
This famous U.S. fault line causes many earthquakes.
San Andreas Fault
Which of the Earth's layers is the thickest?
The Mantle.
You see big rocks broken into tiny pieces. What happened?
Weathering
What two events often happen at plate boundaries?
Volcanoes and Earthquakes
What are the 3 components of a gradual process?
Weathering, Erosion, and Deposition
How hot is the Earth's core?
5500 degrees Celsius
This event happened at Mount St. Helens in 1980 and covered the land with ash. (We watched a video on it in class) What type of change is this and what kind of event is this?
Fast change and Volcanic eruption.
What kind of formation are the Rocky Mountains?
Folded.
You see sand dunes that have changed shape over time. What moved them?
Wind erosion
Gravity forces the core to be solid.
What type of change is this: A waterfall breaks down the side of a mountain after years of the water hitting the mountainside.
Gradual change
What are the four ways mountains are formed?
Folded, Fault Block, Unwrapped, and Volcanic
What is the difference between a divergent and convergent plate boundary?
Divergent, the plates divide
Convergent, the plates collide