Igneous
This is molten rock found below the earth's surface.
Magma
tiny pieces of rock, sand, shells, etc. is called what
metamorphic rocks can be made from ____________, _______________, or _______________________ rocks.
Sedimentary, metamorphic and igneous.
When sediments go under compacting and cementing processes they become___________
What is sedimentary rocks.
layers
The theory that all rocks are just broken down and made into new rocks is known as what cycle.
The rock cycle
This is molten rock found above the earth's surface.
Lava
The final 2 processes that turn sediments into sedimentary rocks?
Compaction and cementation
Propose a reason why the lines/layers of metamorphic rock are wavy compared to sedimentary rock having straight lines/layers.
Metamorphic rocks have wavy layers due to heat.
When igneous, metamorphic and sedimentary rocks go under weathering and eroding they become_________________
Sediments
What is the inner layer of the Earth?
Core
What type of rock is basalt?
Igneous
BONUS POINTS (100): extrusive igneous
Igneous rocks are categorized as _________ or _________, depending on where the molten rock cooled.
Extrusive and intrusive.
What is the difference between weathering, erosion and deposition?
Weathering breaks rock down.
Erosion carries it away.
Deposition drops the sediment off.
It may take ____ of years for sedimentary rocks to form
Millions
The processes that turn metamorphic rocks into sediments
Weathering and erosion
The crust of the Earth is made up of sections that all fit together. These are called _________
Tectonic plates
The oldest rocks on earth are found in which layers
The bottom layers
__________ igneous rocks have larger crystals than the other kind of igneous rocks.
Intrusive
This type of sedimentary rocks form when dead plants from millions of years ago mineralizes. We use it to heat homes
Coal
What are the two processes that create sediments from sedimentary rock?
Weathering and erosion
_________ and ____________ turn sedimentary rocks into metamorphic rocks.
Heat and pressure
A youngest rocks are laid on the ________
The top
The study of rocks, their history and the processes that form and change them.
Geology
Why do some extrusive igneous rocks have no crystals?
Sometimes extrusive igneous rocks cool so fast that they don't have time to form crystals
Give three examples of how erosion can occur.
Wind, water or ice.
Animals, vehicles etc..
What type of rock is slate?
Metamorphic
When metamorphic and igneous rocks go under melting they turn into__________
Magma
What are the layers of the earth in order from the inner to outer layer
Core, mantle, crust
What are the steps in the formation of sedimentary rock
1.Weathering (breaking) of rocks to sediments
2. Erosion (moving) of sediments to sedimentary environments
3.Compaction (squeezing) and cementation (gluing)