Igneous
How is igneous rock formed?
This rock is formed from molten magma.
How are Metamorphic rocks formed?
This rock is made from Intense heat and pressure deep down the Earth.
How is Sedimentary Rock formed?
Sedimentary Rock is formed when sediments are compacted and cemented together.
When rocks are affected bye weathering and erision, they change into what?
Sediment
What is Foliation?
Foliation is the bands/stripes in igneous rocks?
What two things do we look at to classify an igneous rock?
We look at texture and color.
What is a parent rock?
The original rock before it was exposed to heat and pressure.
True or False: Can sedimentary rocks have organic material?
True
When sediment is compacted and cemented, it changes into which type of rock?
Sedimentary rock
What is the most glassy Igneous rock?
Obsidian
How can you tell if a rock is intrusive or extrusive?
Vesicles and crystal size
Which two rocks are Metamorphic rocks? Quartzite, Slate, Basalt, and Obsidian
Quartzite and Slate
Name one rock that compacted sand might form?
Sandstone
When heat and pressure are applied to a sedimentary rock, it changes into which type of rock.
Metamorphic rock
What rock contains fossils?
Sedimentary rocks
What are the four textures?
Fragmental, glassy, aphanitic, phaneritic
True or False: Granite is a form of metamorphic rock.
False
What three characteristics are used to classify sedimentary rocks?
Rock type, structure, and texture
When melting a metamorphic rock, what does it turn into?
What is the primarily type of rock in Hawaii?
Basalt
How does Silica get into an igneous rock?
Silica gets added to an igneous rock, by going into the magma which makes up the rock when the crust is dissolved.
What is the parent rock of Schist?
The parent rock of Schist is Phyllite.
What are the four sizes of sediment that might make up a clastic rock?
Boulder,Cobble,Sand,Silt
When magma is cooled, it changes into which of the following?
Igneous Rock
What happens when rock cools?
It shrinks and becomes tighter.