Plate Tectonics Flashcards
The lithosphere is made from what two main layers of the Earth?
The crust and upper mantle.
Which part of the Earth is broken into pieces that move?
The lithosphere
The asthenosphere is made from what main layer of the Earth?
The mantle
The plates ride on which molten layer where convection currents occur?
The asthenosphere
Which type of plate boundary is where two plates pull apart?
Divergent
Which type of plate boundary is where two plates slide past each other in opposite directions?
Transform
Which type of plate boundary is where two plates come together?
Convergent
What is molten rock that reaches the Earth’s surface called?
Lava
What is molten material that remains under the Earth’s surface called?
Magma
What are the pieces of Earth’s crust that move around called?
Tectonic plates
What is a break in Earth’s crust that moves and can cause earthquakes called?
Fault
What is the machine called that records earthquake waves called?
A seismograph
What main layer of the Earth is warm and found in the middle?
The mantle
What are broken pieces of rock that can form soil or be cemented together to form sedimentary rock?
Sediment
What is any crack in the crust that releases lava, ash and gases is called?
A volcano
What is a type of energy that uses heat from Earth’s core and mantle called?
Geothermal enegy
What is the name of the supercontinent made from all the continents joined together in the past?
Pangaea
What is the name of the process where the Earth is thinned as it is pulled apart?
Rifting
What happens when the Earth’s crust breaks and releases energy?
An earthquake
What is the main layer of the Earth in the center that is very hot?
The core
An ocean trench would be found at which type of plate boundary?
Convergent
Volcanoes would be found at which two types of boundaries?
Convergent and Divergent
Which types of plate boundaries could produce earthquakes?
Convergent, Divergent, and Transform
A mid-ocean ridge would be found at which type of boundary?
Divergent
