Igneous
How are igneous rocks formed?
They form when magma exits and cools above the Earth's surface.
How are sedimentary rocks formed?
They are formed from layers of sediment that get pressed and cemented together over the time.
How are metamorphic rocks formed?
When other existing rocks (like igneous and sedimentary rocks) are exposed to high heat and high pressure.
What is magma?
Magma is molten rock that is underground
Is Mica a type of Igneous rock?
Yes or No?
Answer is: yes!
Where are the oldest layers of the rock is usually found in cliffs made from sedimentary rocks
It can be found at the bottom of the cliff
What state is a forming Metamorphic rock in when it's under the Earth's surface?
A. liquid
B. solid
C. magma
D. gas
A. liquid
B. solid ✔
C. magma
D. gas
What is lava?
Magma is molten rock that breaks through the Earth's surface.
Granite is a type of _______
a.) Extrusive igneous rock
b.) Intrusive igneous rock
Granite is a type of intrusive igneous rock!
How do you tell the differences between sedimentary and igneous rocks?
You can tell the differences between them by looking at their formation.
Ask yourself: 'Does this rock have layers?'
Which of these rocks are NOT a metamorphic rock?
a. basalt
b. quartzite
c. slate
d. hornsfelt
Correct answer isssssssss : basalt!
How are rocks created?
Rocks are created by physical changes such as : melting, cooling, eroding, compacting or deforming.
Which from here is an extrusive igneous rock?
Granite, Diorite, Tuff or Pegmatite
Tuff
Which rock is most likely to be formed by other small rocks and can be found in shallow areas of an ocean?
Conglomerate
What are the two types of metamorphism?
regional and contact
Is obsidian an igneous, sedimentary or metamorphic?
Obsidian is an igneous rock because when volcanic lava cools quickly to the point where there's no time for the crystals to grow.
Which rocks erupt onto the surface while forming small crystals as part of fast cooling?
Extrusive igneous rock
Which of the following features are NOT associated with sedimentary rocks?
- bedding
- foliation
- fossils
- all may be associated with sedimentary rocks
- bedding
- foliation
- fossils
- all may be associated with sedimentary✔
Directed pressure during the process of metamorphism produces a ______
Answer : Foliation!
Would you consider Gneissoid a igneous or metamorphic?
Trick question it can actually be both!