Show:
How does each rock form?
what are the stages of the rock cycle?
How do other rock types change?
Random
Igneous rocks
100

How does an igneous rock form? 

When molten rock crystalizes and solidifies. 

100

What is crystalization 

Magma cools either underground or on the surface and hardens into an igneous rock. 

100

How do rock other rock types change into Sedimentary rocks?

Erosion/Rain, breaks down into sediment- pressure turns into sedimentary rocks. 

100

Why is it important to understand the different types of rocks?

If you use some types of rocks as building structures it is important to know what the weaknesses are or how they erode which could put lives in danger. 
100
What type of Igneous rock is known for building? 

Extrusive 

200

How does a metamorphic rock form?

Metamorphic rocks form when rocks are subjected to high heat, high pressure, and hot mineral-rich fluids.

200

What is cooling?

The process that hardens magma turns into rock.

200

How do other rock types change into metamorphic rocks? 

Heat and pressure cause other rocks to change into metamorphic rocks. 

200
If you were an engineer looking to build a house what type of rock would you use?

Igneous rocks are the most used for building home structures, as well as foundations for companies. 

200
What is the toughest igneous rock? 

Granite

300

How does a sedimentary rock form? 

When pieces of rock are loosened by weathering, and then transported into a depression or basin in become deeply compacted and cemented. 
300

What is weathering?

The breaking down or dissolving of rocks and minerals on earth's surface. 

300

How do other rock types change into igneous rocks?

Melts into magma, magma cools and hardens. 

300

What other factors would you consider when building? 

It needs to be considered how it will weather down or erode so that you will have a stable foundation when it is relied on. 

300
When were the first igneous rocks formed?

4.6 Billion years ago 

400

How does magma form? 

Rocks below the surface melt and become a goo. 

400
What is erosion? 

The geological process in which earthen materials are worked away and transported by natural forces such as wind or water. 

400

What causes most rocks to turn into magma? 

Extreme heat causes it to melt, also cools which can harden and form different rocks. 

400

What type of rock is known for it's crystals?

Igneous rocks. 

400
What is the oldest known igneous rock?

Erg Chech 002

500

How does a sediment form?

Material deposited by wind, water, and glaciers. 

500

What is metamorphism? 

Transforms rocks into denser, more compact rocks

500

Which one is used when magma starts to cool? Cementation or Compaction?

Both. 
500
What type of rock are pebbles involved with?

Sedimentary rock 

500

What is the rarest type of igneous rock?

UltraMafic