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Sedimentary rock is from sediments as igneous rocks is from what?
Cooling Lava/ magma
True or false?
Most igneous rocks are organic.
True
Continental crust is ____ than the Oceanic crust because it does not get recycled.
Older
Plate boundaries moving away from each other are called _________ boundaries
A divergent boundary
Plate boundaries are ____________
Places where plates interact.
Rift valleys are a part of Mid_____________
Mid Ocean Ridges or Mid oceanic Ridges.
Can some boundaries CREATE seafloor? Specify.
Can others DESTROY seafloor? Specify.
True or false:
Minerals are are made of a crystalline structure.
If false, correct the mistake.
True.
Why are the hawaiian islands unique?
Because they are formed from hot spots.
What is the most studied fault in the world?
The San Andreas Fault
What is the hardest mineral on the mohs scale?
A diamond, with a 10 on the mohs scale.
What type of igneous rock is formed below the earth's surface?
Intrusive igneous rock
What type of igneous is formed from rapid cooling?
Extrusive igneous rock
What was the super continent called
Pangea
What landforms do continental-continental plates create?
Mountains
Rocks are a combination of ________ and ____________
minerals and organic matter
Do most minerals exist inside living organisms?
No, most minerals do not exist inside living organisms.
What is the biggest tectonic plate?
Pacific
True or False?
Once oceanic crust has subducted, it is continental crust.
False. It is mantle.
The source of heat in the mantle is ________
Radioactivity
Which scientist first proposed the continental drift theory?
Alfred Wegner
How fast do plate tectonics move?
4 inches per year.
What is the ring of fire and where is it?
The ring of fire is a widespread circle of plate boundaries that is known for its volcanic activity and is found in the pacific plate.
The main force that causes sea floor spreading and continents to drift.
Thermal Convection
How is an object measured in the Mohs scale of hardness?
It is measured by testing what the object can scratch and using the data, the object is placed an a scale of 1-10 with 10 being the hardest and 1 being the softest.