Plate Tectonics
What is a tectonic plate?
The sections of the Earth that the crust is broken into.
Is erosion a slow or rapid change?
Slow change
Slow Change.
Rapid
Are earthquakes a slow or rapid change?
Rapid change.
Plate tectonics are associated with causing ______________ and __________________.
Volcanoes
and
Earthquakes.
As a class, what have we been comparing erosion to?
TRUCK
As a class, what have we been comparing weathering to?
HAMMER
What is the most dangerous part of a volcano?
The ash cloud
True or False: Sometimes earthquakes happen and we can't even feel them.
True!! Most earthquakes are small. You might feel a slight tremor or see the water in a fish bowl move.
What are the three types of plate movements/plate boundaries?
1) Trasnform
2) Divergent
3) Convergent
List two types of erosion.
Gravity, water, wind, and ice.
List two of the types of physical weathering.
Plant growth, abrasion, ice wedging, and thermal expansion.
Where do 75% of volcanoes lay?
Ring of Fire
What type of plate boundaries cause earthquakes? (divergent, convergent, transformative)
Transform boundary (plates slide past one another)
How many major tectonic plates exist?
Eight. These are the Antarctic, African, Eurasian, Australian, Pacific, North American, South American and Nazca.
What is deposition?
The laying down of pieces of rock.
List two of the types of chemical weathering.
Acid rain, oxidation, carbonation.
What is the difference between magma and lava?
Magma is molten rock and is stored in the Earth's crust. Lava is magma that reaches the surface through a volcano.
The epicenter is the point of Earth's surface that is directly _________ the focus of the earthquake.
Above
Which plate tectonic movement is the convergent boundary?
The movement where two tectonic plates move into one another and collide.
What is the most famous American site of erosion?
The Grand Canyon!
Rapid and slow changes to our Earth's surface effect the formation of different landforms.
What is the Ring of Fire?
The Ring of Fire is a string of volcanoes or earthquakes around the edges of the Pacific Ocean. It is shaped like a horseshoe?
What is the break or crack in rock where Earth's crust can move?
A fault