Rocks 1
Big beautiful minerals that form when magma cools slowly.
What are crystals?
Physical or chemical breakdown of rocks.
What is weathering?
Natural occurring, usually inorganic hard substance. Made of crystals.
What are minerals?
This rock has light and dark bands of mineral and was changed from its original form through heat and pressure.
What is a metamorphic rock?
The grand canyon was carved by these two natural processes.
What is weathering and erosion?
Obsidian, granite, and basalt are examples of this type of rock.
What are igneous rocks?
When lower parts of the Earth are moved or pushed to the surface due to natural processes.
What is uplift?
Describe the rock cycle.
can go in any order.
Heat and pressure = metamorphic
Errosion, deposition, Cementation = Sedimentary
Melting, cooling = Igneuous
Gneiss, Slate, and marble are examples of this type of rock.
What are metamorphic rocks?
These are two ways that minerals can form.
-Temperature and pressure reorganizing atoms.
-water evaporating can leave behind minerals.
rocks with coarse grained crystals that form inside the Earth
What are Intrusive rocks
when sediment is laid down or dropped in an area.
What is deposition?
Tiny pieces of sand, rocks, and shells that can sink to the bottom of a lake.
What is sediment?
when plants produce weak acids that wear down rocks.
What is chemical weathering
This type of Igneous rock cools so quickly that no crystals are formed at all.
what is Obsidian?
Acid rain is an example of this.
Chemical weathering?
When broken down rocks are moved around by natural processes.
What is Erosion?
Shale, limestone and sandstone are examples of this type of rock.
What are examples of sedimentary rock?
Tree roots that grew through a rock and split it into multiple pieces.
What is physical weathering?