Rock Types
What type of rock forms from cooled magma or lava?
Igneous
The process that breaks rocks into smaller pieces.
Weathering
Molten rock beneath the Earth’s surface.
Magma
What process follows weathering and erosion in forming sedimentary rocks?
Deposition
Shaved crayon pieces in the lab represent this.
sediments
What type of rock forms from compacted and cemented sediments?
Sedimentary
The process that transports sediments by water, wind, or ice.
Erosion
Molten rock that reaches the Earth’s surface.
Lava
If a metamorphic rock melts, what type of rock will it become after cooling?
Igneous
Pressing the shavings together models this process.
What type of rock forms when existing rocks are exposed to high heat and pressure?
Metamorphic
The process that presses sediments together to form sedimentary rock.
Compaction & Cementation
Small pieces of rocks, minerals, or organic material.
Sediments
How can igneous rocks eventually become sedimentary rocks?
Weathering → Erosion → Sediments → Deposition →Compaction & Cementation → Sedimentary
Applying heat and pressure to the crayon represents the formation of this rock type.
metamorphic rock
Which two elements are found in all silicate minerals?
Silicon and oxygen
What process turns rocks into magma?
Melting
Rocks with large crystals that cool slowly underground.
Intrusive igneous rocks
Name the three main rock types in the rock cycle.
Igneous, Sedimentary, Metamorphic
Melting and cooling the crayon models this process.
magma solidifying into igneous rock?
Felsic minerals are usually. (name 2 characteristics)
Light colored, less dense than mafic, and resistant to weathering.
What process changes minerals in a rock without melting it? (metamorphic rock)
Heat & Pressure
Rocks with small or no crystals that cool quickly on the surface.
Extrusive igneous rocks
What is the parent material of all three types of rocks?
Magma, other rocks, sediments.
Since our crayon rock was rapidly cooled to form an igneous rock, should it have had small crystals or large crystals?
small crystals