Q/A 1
Which parts of Earth's interior has two distinct layers ?
Core
Which process acts on Earth's surface to break rocks into pieces?
Weathering
What is Deposition?
Sediments settle in layers
What is a Sedimentary Rock?
Rocks that are formed when small particles of rock or plant remains are pressed together.
What the three types of Rocks?
Sedimentary,Igneous ,and Metamorphic.
Which is Earth's thinnest layer ?
Crust
What leads most directly to the production of igneous rock?
formation of magma
What is the rock cycle?
Processes that occur on Earth's surface, crust, and mantle that change rock one form to another.
What are Sediments?
Particles of a rock.
What is Texture?
based on size, shape, and pattern of grains.
What is an example of indirect evidence about Earth's layers?
changes observed in seismic wave data
How does a sedimentary rock turn into a metamorphic rock?
Heat and Pressure
What is an Igneous rock?
Rocks that form from cooled magma or lava.
What is a Metamorphic Rock?
Rock changed by pressure ,heat ,and chemical reactions.
What are the five characteristics of a mineral ?
Naturally occurring, forms by inorganic processes, solid, crystal structure, and definite chemical composition.
How does an Igneous rock turn into magma and lava ?
melting
What is an Extrusive rock?
A rock formed from lava that is cooled on the surface.
What tells us what kind of igneous rock we have?
Temperature and Composition
What causes the crystals in gneiss to line up in bands?
Pressure
How does magma and lava turn into an igneous rock?
Volcanic Activity
What is an Intrusive rock?
Rocks that are formed when magma cools under the surface.
What tells us about the size of the crystals?
Temperature