ALL
What is the rock cycle?
how one form of rock can turn into another.
What are the 3 main rock types?
Igneous, Metamorphic, and Sedimentary
What are the two types of crust that earth has?
Oceanic (Ocean) and Continental (land) Crust
What was the name of the super continent?
Pangea
What are the three main plate boundaries we have learned?
Convergent, divergent, and transform
What is seafloor spreading?
The creation of new sea floor (made by divergent plates)
What is added to create a metamorphic rock?
Heat and pressure
What causes layers to appear under the Earth's surface?
Density
Who came up with the theory of continental drift?
Alfred Wegener
What motion does convergent plate boundaries make? and what do they create?
Convergent boundaries come together and can create mountains and volcanoes.
What is the difference between intrusive and extrusive rock?
Intrusive rock is INSIDE the Earth's crust
Extrusive rock is OUTSIDe the Earth's crust
What happens to create an igneous rock?
Lava hardens
Which is the thickest layer of the earth? Which is the thinnest?
Thickest: Mantle
Thinnest: Crust
What was the theory of Continental Drift lacking/why didn't other scientist back up this theory?
Wegener couldn't explain HOW the plates moved apart from one another.
What motion does divergent plate boundaries make? and what do they create?
Divergent plates move away from each other and can create trenches and rift valleys
__________ (intrusive/extrusive) igneous rocks are formed at the surface from ______ (lava/magma).
extrustive, and lava
What happens to create a sedimentary rock?
Erosion/weathering
Which layer of the Earth is the hottest? Which is the coolest?
Hottest: Inner Core
Coolest: Crust (the one we live on)
List 3 reasons that Continental Drift is a sound theory:
Possible Choices:
1. The continents fit together like a puzzle (matching shorelines)
2. The same fossils have been found across continents.'
3. Matching rock types and structures
4. Matching Glacial Deposits
What motion does transform plate boundaries make? and what do they create?
Transform plates move past one another (side by side) and can create earthquakes.
What are convection currents?
Currents under the earth's crust that move the plate boundaries
What is weathering?
the breaking down of rocks and minerals on Earth's surface
List all the layers of the Earth:
Crust (Oceanic and Continental crust)
Mantle
Outer Core
Inner Core
What was the force that moved away the continents?
Possible Answers:
Sea Floor Spreading/Convection Currents in Earth's Mantle
What is the theory of plate tectonics?
States that the Earth’s outer shell (lithosphere) consists of individual plates that move and change shape.