Rock Cycle
What are the three types of rocks?
The three types of rocks are igneous, sedimentary, and metamorphic.
What is the equation for density?
Density = mass/volume
(Density is equal to mass over volume)
What layers make up Earth's interior?
The three layers that makeup Earth's interior are the crust, the mantle, and the core.
What are mid-ocean ridges?
Long chains of underwater mountains that are formed by magma spewing out of divergent plate boundaries.
What are the types of weathering?
Physical weathering, Chemical weathering, and Biological weathering
What type of rock is sandstone?
Sedimentary
How can you find volume?
Length x Width x Height
Where are the asthenosphere and lithosphere located?
Asthenosphere: lower mantle
Lithosphere: upper mantle and crust
What causes seafloor spreading?
When cracks in the crust form, new magma is burst out and cools quickly, creating new sea floor. The constant growth of the new sea floor pushes the old floor aside.
Can physical weathering turn a mountain into sand?
Yes
Can metamorphic rocks have fossils in them?
No, they can not. This is because when metamorphic rocks form, the magma forming the rock is so hot, it will melt any fossils inside it.
Can density change?
No, the density of an object will not change no matter the change in size, or shape.
Why is the outer core liquid but the inner core, solid?
Because pressure is too high in the core, and the atoms become too compact making it solid.
What pieces of the lithosphere move?
Lithospheric plates, Oceanic plates, and Continental plates.
What is graded bedding and how can we tell how old they are?
The order of rocks from large to small, we can tell that the smallest is the oldest because it was eroded down the most.
What type of rock has ribbon-like layers?
Metamorphic
What is the formula for density?
density = mass/volume
What is the core made mainly out of?
Iron and nickle
Who was Harry Hess?
American geophysicist person who studied plate tectonics, and helped the theory of sea-floor spreading.
What is an example of both chemical and physical weathering?e
Root wedging. This is because when roots form inside of a rock, the root may grow so large that it breaks the rock, but the root also contains enzymes that attack rock minerals.
What is the difference between extrusive and intrusive rocks?
Extrusive rocks form on the outside of Earth's crust and intrusive forms on the inside of Earth's crust.
A pound is how many newtons?
A pound is equal to 4.448 newtons
How hot can the mantle get?
870-4,400 degrees
What is an example of a mantle plume?
Hawaii
(open-ended)
What is the difference between weathering and erosion?
Weathering can break down rocks into multiple pieces, while erosion simply moves the rock to a different location.