Vocab
the process od sediment being buried and pressed together
compaction
The rock type is formed when sediment is compacted and cemented together
Sedimentary Rock
The process of rock breaking down into smaller pieces due to wind or moving water
Weathering
In the crayon lab how did we weather the rock?
We shaved the crayon (rock) into tiny pieces that represented sediments.
Which energy sources drive weathering and erosion?
The Sun
Name 3 processes in the rock cycle
Answer varies
The ability to make things move or change
Energy
What does cooled magma become?
Igneous Rock
Magma forms when any type of rock is melted, a process driven by energy from
Earth's core
What rock materials and processes do we need to create a sedimentary rock?
sediments+compaction +cementation= sedimentary rock
What are the two main sources of energy that power the rock cycle?
Erath's core and the Sun
What is the difference between uplift and subduction?
Subduction moves rock down, below Earth’s outer layer.
Uplift moves rock upward toward Earth’s surface
Describe magma
a hot liquid below the surface of the earth
What are the two types of igneous rocks and where are they formed?
Intrusive: inside the earth
extrusive: on the surface
what process does magma go through to become an igneous rock?
cooling
What did the melted crayon represent in the model?
Magma
What is a mid-ocean ridge?
Underwater mountain system where divergent plate boundaries meet. Magma rises up to form ocean floor.
What are the three types of rocks?
Igneous, sedimentary, and metamorphic
The movement of sediment from one place to another, often caused by wind or flowing water
Erosion
Rocks are classified by how they ________
form, are created
What is the primary role of wind and water in the rock cycle?
eroding and transporting sediments
What rock types can be weathered?
All three: igneous, sedimentary and metamorphic
Answers Vary
What is the difference between the energy from Earth's core, and the energy from the sun?
The Earth's core proved heat and eergy that helps form and change rocks, while the sun's energy caused weathering and erosion.
Describe the rock cycle
the continous processes that form, break down, and re-form rock
What is the rock type formed when heat or pressure deep underground changes existing rock
Metamorphic Rock
Which process in the rock cycle can take the least amount of time, sometimes within a human lifetime?
weathering and erosion
What kind of rock is sandstone?
sedimentary
What is the difference between non-renewable and renewable energy?
Non-renewable resources are used up by people faster than they can be replaced. The process to form them naturally takes a long time (millions of years)
What are the the processes that create each type of rock: igneous, metamorphic, and sedimentary?
Igenous: melting and cooling
Metamorphic: heat and pressure
Sedimentary: sediments + comapction and Cementation