General Rocks
What type of rock is formed when it is exposed to extreme heat and pressure?
Metamorphic Rock
the two types of Igneous rocks
What is intrusive and extrusive?
How does a rock become a Sediment?
By weathering and Erosion
what does Acid rain do to the environment?
it kills plants and animals.
If a rock has vesicles what type is it?
a Igneous rock
what is the largest size of sedimentary rocks
boulder size
what is an intrusive Igneous rock?
it is an igneous rock that has been formed inside the earth. you can see the crystals because it cools slowly.
what is the smallest size of Sedimentry rock
silt or clay
What is weathering?
When rocks are broken down or dissolved on the earths surface.
What type of rock is Sandstone?
Sedimentary rock
Where do you find Mafic and Ultra Mafic rocks?
in oceanic crust
what type of texture means you can see the crystals that have been formed?
Coarse
what type of structure appears to be grainy and composed of sand particles?
granular
What is erosion?
the process where rocks are broken down by natural forces such as wind,water.
If a rock is formed underground and has crystals what type of rock is it?
Intrusive Igneous
What does a rock being Foliated mean?
when rocks have a banded and striped appearence
what are examples of igneous extrusive rocks?
Andesite, Rhyolite, Vesicular Basalt, Pumice
what does a Sedimentary rock need to become an Igneous rock?
it needs to melt into magma then crystalize.
what process happens after a rock gets weathered.
erosion
What type of rock is Granite?
Igneous rock
What is the parent rock of Schist?
Phyllite
What percentage of silica makes up the earths crust?
95%
What are the three types?
Clastic, Chemical, Original
How can acids cause chemical weathering?
When rocks are exposed to acidic substances the acids react with minerals inside the rocks, weakening the structure of the rock and causing it to break down more quickly.
what type of rock is Breccia?
Sedimentary rock