Rocky-top Cycle
What are the three major types of rock?
igneous, sedimentary, and metamorphic
The 2 types of Igneous rock are:
intrusive and extrusive
Tiny pieces ( 6 different sizes) of rocks and shells are called:
sediment(s)
This type of metamorphic rock does not have bands of lines made of grains and minerals:
Non-foliated
Based on what we know about rocks and the rock cycle, about 70% of the Earth's rocks are this type (Also fossils are only found in this type rock!):
Sedimentary
What is the difference between magma and lave?
Magma = inside Earth
Lava = on surface of Earth
Commonly, coarse grains is a(n) _________ type of igneous rock and fine or no grains is a(n) __________ type of igneous rock.
Intrusive
Extrusive
The main classes of sedimentary rocks are
clastic, organic / chemical
How can a metamorphic rock change into an igneous rock?
Heat/melting into magma
The most common usSe of all types of rocks is for:
building and tools
Explain Weathering, Erosion, and deposition:
Weathering: makes sediments using rain, ice, wind, water, plant roots
Erosion: transportation of sediments from weathering
Deposition:dropping and building up of sediments
The speed that magma or lave cools affects the LOOK of the igneous rock and the TYPE of igneous rock. Explain this.
Intrusive - cools slow = large, coarse crystals
Extrusive- cools quickly = small crystals with vesicular 'bumpy' air-bubble look
- cools very, very quickly = no crystals; smooth, "glassy" look
Igneous or metamorphic rock changes to sediments through the process of:
weathering
This type of metamorphic rock has bands of lines made of grains and minerals:
foliated
The oldest rocks on Earth are found on in which layers of rock:
the bottom layers
At what point does the rock cycle end?
it never ends
There are two main rocks that are classified according to where magma cools and hardens.
intrusive and extrusive
The final 2 processes to turn sediments into rock are:
compressing/compacting and cenetation
The types of rocks that most often become metamorphic rock are:
Igneous, sedimentary, and metamorphic rocks
The study of rocks, their history and the processes that form and change rocks is called:
geology
GIve the definition of the rock cycle
There are three families of igneous rocks that are classified based on the rock's colors.
mafic, intermediate, felsic
The type of sedimentary rock that forms from dead plants and animals from millions of years ago is called:
organic (biological or coal)
How could a metamorphic rock change into a sedimentary rock?
Weathering
The amount of silica changes the coloring of igneous rocks. Tell the color of:
high silica content
very low silica content
light-colored
dark colored