Tectonic Plates
How do new seafloor form?
New seafloor forms when magma from the asthenosphere comes up from the oceanic ridge(which forms at a diverging boundary), and cools.
What is the Rock cycle?
The Rock cycle is where rocks change into one form to another form.
Explain Mass and weight.
What are the 3 main layers of the earth?
The 3 main layers are the Crust, Mantle, and the Core.
Define Geology.
the study of rocks and rock formation.
What are the evidence that pangea was a supercontinent and how there is plate movement?
The evidence is that there is fossil evidence because the same fossil of an animal can be found in multiple places around the Earth. The plates are also like some puzzles because when you piece the continents together it fits perfectly.
How do the two types of igneous rocks form?
What is Volume?
Volume is how much space matter takes up.
How does the core transfer heat to the other layers?
The core transfers heat by convection.
How do fossils form?
Fossils form when the bones and teeth of an animal is covered by layers of sedimentary rock.
What are the 3 plate boundaries?
How do weathering and erosion work together to form sedimentary rocks?
Weathering break down the rocks into sediments, then erosion carries the sediments to form new sedimentary rocks.
Explain what Density is.
Density is the ratio of Mass to Volume.
Why does convection happen?
Convection happens when there is uneven heating. The cool molecules sink because it is more dense, then the warm molecules with rise because it is less dense.
What is relative dating?
Relative Dating is the process of putting events in order in which they happend.
How do Tectonic plates move around?
The convection currents in the asthenosphere moves the plates around because the currents carry the plates like a conveyor belt.
Why do metamorphic rocks form?
Metamorphic rocks form because of high pressure and heat. The pressure from the sedimentary layers above squishes it and pushes it down. The lower it goes the hotter it is. The high pressure and heat form metamorphic rocks.
Define buoyancy.
The ability or tendency to float in water or air or some other fluid.
What is conduction?
What is suspension?
Suspension means that the bottom layer rock is older than the top layer rock.
Where can you find volcanoes and mountains?
Volcanoes and Mountains can be found at a converging boundary.
How is the Rock cycle not a perfect cycle?
It is not a perfect cycle because not everything is 100% to happen. Unlike the water cycle when when metamorphic rocks form it can either turn back into magma then back into igneous rocks or it can be weathered and eroded away to form sedimentary rocks again.
How does something sink, and how does something float?
Something sinks when it is more dense than the liquid, but when something is less dense than the liquid then is floats.
Define Radiation.
The heating of an object through electromagnetic waves.
Define Inclusions.