Earth's Layers
The thinnest layer of the Earth
What is the crust?
What is created when plates slide past each other
What are earthquakes?
The type of rock that forms from cooling magma
What is igneous rock?
Examples of this process include rocks break apart from ice expanding and contracting or plants growing up through sidewalks
What is physical weathering?
When rock melts, it becomes this substance
What is magma?
This is the thickest layer of the earth made of moving molten rock
What is the mantle?
This type of plate movement creates ridges and new ocean floor
What is plates moving away from each other?
This type of rock often has clear layers, can contain fossils, and has pieces that may flake or break apart
What is sedimentary rock?
The process of dropping sediments that occurs after erosion moves them away
What is deposition?
Rocks become smoother, smaller, and more round in a stream due to this process
What is weathering?
Layer made of solid metals
What is the inner core?
These can occur where plates move toward each other and one plate sinks under the other (3 answers)
What are volcanoes, earthquakes, and a trench
Weathering and erosion turn rocks into this
What is sediment?
Planting grass or other plants can help prevent this process
What is erosion?
Bones, teeth, claws, and shells are more likely to become fossils because they are all this
What is hard?
This happens to the temperature of the Earth's layers as we move from the crust to inner core
What is the temperature increases?
These occur when two continental plates move toward each other (neither sinks below the other)
What are mountains?
This type of rock is often found in mountains, with wavy patterns in it due to the heat and pressure that formed it
What is metamorphic rock?
Erosion is most often caused by this
What is water?
A special kind of mixture that cannot be separated with a filter
What is a solution?
This causes the convection currents that move the tectonic plates
What is the heat from inside the Earth?
What can occur at any plate boundary due to the moving plates
What are earthquakes?
These two processes have to happen to sediment to turn it into sedimentary rock
What are cementing and compacting?
Weathering breaks down rocks, while erosion is a force that does this to them
What is moves them?
Process in which matter changes between a solid, liquid, and gas, often due to thermal energy
What is a phase change?