Rock cycle
What are the three main types of Rock called?
Igneous, sedimentary and metamorphic
How is sedimentary rocks formed?
Existing rock been compacted and pressurized
How is metamorphic rock formed?
When rocks are subjected to high heat
How is igneous rocks formed?
Cooling of lava
What is weathering deposition or erosion? (anyone can get you points)
Weathering- To break apart rocks
Erosion- rocks moving from natural causes
deposition- to drop/deposit rocks in places by Natural causes
Can the rock cycle stop?
No
Is chalk a sedimentary rock?
Yes
Who discovered metamorphic rock?
James Hutton
What is igneous rock that cools under the earths surface called?
Intrusive igneous rock
What are the causes of erosion?
Wind, water and glaciers
What can the rock cycle tell us?
The history of the Earth
Where do sediments go?
Deltas, riverbeds, and the bottom of waterfalls
Are metamorphic rocks affected by weathering?
Yes
What is the hardest igneous rock called?
Diamond
What is chemical weathering?
Process of chemical in rainwater making changes to the rock
How long can a rock cycle take?
Approximately 20 million years
What are the three major types of sedimentary rocks?
Clastic chemical and organic
What are the main types of metamorphic rocks?
Foliates and non-foliates
How can you identify a rock is igneous?
It often has black, gray or white, and often has baked appearances
What kind of rock is created by erosion?
Sedimentary rock
Who discovered the rock cycle?
James Hutton
What is the rarest sedimentary rock?
Ancient Rockshore deposits
Exactly how old are metamorphic rocks?
3.8 billion years
What is the name igneous named after?
Ingis fire in Latin
What river shaped the Grand Canyon?
The Colorado river