Layers of the Earth
What is the outer layer of the earth called?
Crust
What do you call the large pieces of crust and upper mantle that float on the bottom of the lower mantle?
Tectonic Plates
What do you call a fracture in a block of rock which results in blocks moving in relation to each other?
Fault
What do you call an opening in the earth's crust from which molten rock is able to escape?
Volcano
These cannot be human-made substances.
Minerals
What is the layer between the crust and the core called?
Mantle
What kind of boundary exists where two tectonic plates collide?
Convergent
What do you call a sudden shaking of the earth's crust causing seismic waves?
Earthquake
What is molten rock under the earth's crust called?
Magma
What is the test called where you scratch a mineral on a tile?
Steak test
Which section of the mantle has lower temperatures and lower pressure
Upper Mantle
What kind of boundary emerges where two tectonic plates move away from each other?
Divergent
What do you call the point where an earthquake begins?
Focus
What is molten rock on top of the earth's crust called?
Lava
What is it called when a rock or mineral break into smooth flat surfaces?
Cleavage
Is the outer core solid, liquid or gas?
Liquid
What kind of boundary occurs when tectonic plates slide past each other?
Transform
What do you call the point on the surface directly above the focus?
Epicenter
What do you call the motion where warmer materials rise while cooler materials sink?
Convection
What is it called when a rock or mineral break along rough, jagged edges?
Fracture
Is the inner core solid, liquid or gas?
Soild
What do you called it when one plate sinks and slides under another?
Subduction
What do you called the elastic waves of energy that travel through the earth from an earthquake?
seismic waves
What kind of rock is formed from volcanoes?
Igneous
What are we testing when we try to scratch a mineral?
Hardness