Igneous Formation
Its Sedimentary
Layers of the Earth
The Rock Cycle
Weathering the Storm
100
This is molten rock found below the earth's surface.
What is magma?
100
tiny pieces of rock, sand, shells, etc. are called what
What is sediment?
100
The four layers of the earth that we discussed are ___
crust, mantle, outer core, inner core
100
When sediments go under compacting and cementing processes they become___________
What is sedimentary rocks.
100
The chemical and physical breakdown of rocks into sediment.
What is weathering?
200
This is molten rock found above the earth's surface.
What is lava?
200
The final 2 processes that turn sediments into sedimentary rocks?
What are compaction and cementation?
200
The continental crust meets what type of crust underwater less than 100 km from a coast?
ocean crust
200
When igneous, metamorphic and sedimentary rocks go under weathering and eroding they become_________________
What is sediments?
200
Plateaus are made into formations like canyons because of?
River erosion
300
Melted rock that cools quickly results in igneous rocks with what?
Small crystals (sometimes pits/holes)
300
Minerals combined with water can act like _________, holding the rock together
cement
300
The thickest layer of the earth is
the mantle
300
The processes that turn metamorphic rocks into sediments
What are weathering and eroding?
300
For sediments to form sedimentary rock they must be deposited in what?
A basin
400
When magma does this it forms granite with large crystals
Cools slowly
400
Sandstone can form when layers of sand are buried and put under _____________.
pressure
400
The top part of the mantle and the crust form which layer of the atmosphere?
the lithosphere
400
_________ and ____________ turn sedimentary rocks into metamorphic rocks.
Heat and pressure
400
Name a type of chemical weathering?
Acid rain, oxidation, hydrolysis
500
Basalt is an igneous rock that is found in which layer of the earth?
ocean crust
500
What are two things that can be found in sedimentary rocks that scientists can study to learn about the past?
fossils of plants and animals
500
What kind of currents flow slowly in the mantle?
convection currents
500
When metamorphic and igneous rocks go under melting they turn into__________
What is magma?
500
Draw the rock cycle.
