Show:
3 Types of Rocks
The Rock Cycle
Igneous Rock
Sedimentary Rocks
Metamorphic Rocks
100

Formed by the crystallization of molten magma

What is igneous rock?

100

Molten material that forms deep beneath the Earth’s surface

What is magma?

100

Formed when magma hardens beneath Earth’s surface. Larger crystals form due to slower cooling.

What is intrusive igneous rock?

100
Composed of weathered bits of rocks and minerals
What is classic sedimentary rock?
100
What does metamorphism mean?
What is to change form?
200

Formed from the weathered products of preexisting rocks that have been transported, deposited, compacted, and cemented

What is sedimentary rock?

200

Magma that reaches the earth's surface

What is lava?

200
Formed when lava hardens
What is extrusive igneous rock?
200
Form when dissolved substances precipitate, or seperate from water
What is chemical sedimentary rock?
200
Where do most metamorphic changes occur?
What are elevated temperatures and pressures?
300

Formed by the alteration (means changing) of pre-existing rock deep within the Earth

What is metamorphic rock?

300

A process in which rocks are broken down by water, air, and living things

What is weathering?

300
Caused by very rapid cooling
What is a glassy texture?
300
Classic sedimentary rocks are classified by what
What is particle size?
300
Occurs near a body of magma and is driven by a rise in temperature when magma moves into rock
What is contact metamorphism?
400

What are the three types of rocks?

What are sedimentary, igneous, and metamorphic rocks?

400

Weathered pieces of Earth's elements

What is sediment?

400
Made mostly from iron and magnesium-rich minerals
What is ultramafic composition rock?
400
Name one common type of chemical sedimentary rock.
What is limestone, microcrystalline quartz, rock salt, or coal?
400
Results in large-scale deformation (folding) and high-grade metamorphism
What is regional metamorphism?
500

Formed 4.5 billion years ago

What is igneous rock?

500

To put pressure on or squeeze

What is compact?

500
Igneous rocks can be classified based on their what?
What is composition and texture?
500
What do ripples in rock layers indicate?
What is that the area was an old lake bed?
500
What are the two main categories of classification for metamorphic rock?
What is foliated and nonfoliated?