Igneous Rocks
True or False: Igneous Rocks formed at Earth's surface are called extrusive.
False
Organic
Two types of metamorphic rock
foliated and nonfoliated
To describe a rock's texture, geologists determine
the size, shape, and pattern of rock's grains.
Erosion
Rock that cools very quickly when it forms and has a texture that is _________
smooth and shiny
Shale is _________ (type of rock)
organic sedimentary rock
Metamorphic rocks that have their grains arranged in parallel layers or bands
Foliated
True or False: Rocks only contain inorganic materials.
False
compaction
Rocks that have been dissolved in a solution are called ________.
chemical
Metamorphic rocks are formed by
heat and pressure
Heat and Pressure deep beneath Earth's surface can change any rock into _________ rocks.
Metamorphic
Process which sediment settles out of water from the wind is __________.
deposition
Which rock makes up mountain ranges?
granite
Sedimentary rocks that have been squeezed together are called
clastic
Rocks have their grains not arranged in any certain way
non-foliated
Color tell us the ____________ _________ of a rock
Silica content
BONUS**200 points
Can you tell me which colors have high and low silica content?
When sediment becomes "glued" together
Cementation
Basalt is a(n) (Type of Rock)
extrusive igneous rock
Which of the following is an example of an organic sedimentary rock?
coal, sandstone, tuffa, or slate?
coal
Mrs. Hall's favorite metamorphic rock (looks glittery)
Schist
coarse-grained.
Explain the rock cycle and its processes.
1. Erosion - Wind, water, and ice
2. Deposition - sediment settles of out of water or wind
3. Compaction - sediment is pressed together
4. Cementation - sediment is "glued" together