Igneous
Metamophic
Sedimentary
Erosion and Weathering
The rock cycle
100
What are Igneous rocks formed from?
They are formed from magma.
100
What is the process for a rock to become metamorphic rock?
They must be put under intense heat and pressure.
100
What are sedimentary rocks made of?
Different particles of rock and other materials.
100
What is weathering?
The natural procces of breaking down rocks
(wind,rain)
100
What is the rock cycle?
The cycle in which rocks go through when they change from one type of rock to another.
200
What are the two types of igneous rocks?
What is Extrusive, Intrusive?
200
What does a rock have to do to become a metamorphic rock?
It has to get buried then put under heat and pressure.
200
What two processes make a sedimentary rock?
Compaction and cementation.
200
What is erosion?
Sediments being moved by water or other natural processes like wind.
200
True or false
Any rock can turn into any rock.
True
300
What are the 3 processes for a rock to go from one to an igneous rock?
Melting into magma, then crystallization.
300
What does it mean if a metamorphic rock is foliated?
It means they have wavy layers in them.
300
TRUE OR FALSE: Fossils are mostly found in sedimentary rock?
True.
300
what occurs when acidic rain falls on rock?
When rain falls upon a rock the water may react with the minerals in the rock and weathers it down
300
What is the first step of turning into an igneous rock?
Melting.
400
What do extrusive Igneous rocks have?
Vesicles or air bubbles.
400
What are three metamorphic rocks?
Gneiss, marble, and quartzite.
400
What does another rock have to go through to become a sedimentary rock?
It has to go through weathering so it can break down then get pressed together.
400
What is an example of a physical feature that is not weathering?
Acid rain
400
How does a rock become metamorphic
The rock is exposed to heat and pressure.
500
What must another rock become before it can become Igneous?
Magma
500
Where do metamorphic rocks normally cleave?
Along the layers.
500
Where are sedimentary rocks formed? (Below the crust, in a volcano ect.)
Near the surface of Earth.
500
How do plants cause weathering?
As the plant grows, its roots could fall into a crack within a rock and eventually completely break through it
500
Extrusive igneous rocks often have air pockets but intrusive igneous rocks never do. What do you think is the case?
Extrusive rocks are close to the surface