Sedimentary Rocks
What is weathering?
Big rock is broken down into smaller rock (sediment) by the wind, rain, snow, and other weather.
How do Igneous Rocks form?
Melting and Cooling
How do Metamorphic Rocks form?
High heat and pressure.
Mrs. Kristen drives through Altamont every day and notices a beautiful rock formation. How do you think t he rock would change from week to week?
The rock will not change very much as the processes involved with rock transformations take a very long time.
Mrs. Reed finds small pieces of rock in Kashmir and liquid rock in Spain. Are they the same types of rock? Why?
They are different because they form in different ways.
What is Erosion?
Sediment is transported from one place to another by streams, wind, ice, etc.
What do we call igneous rocks that solidify beneath the surface of the earth?
Intrusive Igneous Rock
Where would we likely find metamorphic rocks?
near plate boundaries
Mrs. Griffin is hiking the Sierra Nevada Mountains and notices large amounts of sediment? How did these tiny pieces of rock get here?
Weather like wind and rain broke down big rock into tiny pieces.
Can Sedimentary rock become igneous rock? How?
Yes, if sedimentary rock is moved below the surface of earth's outer layer it can be exposed to energy from the interior. It will melt into liquid rock and form igneous rock.
What is deposition?
The process of sediment being laid down adding material to the existing layer of sediment.
What do we call igneous rocks that solidify above the surface of the earth?
Extrusive Igneous Rock
Why are we more likely to find Igneous Rocks in Hawaii compared to Arizona?
Because Hawaii has more volcanoes which create magma and lava that cool into Igneous Rock.
What energy source is needed to create new metamorphic and igneous rock?
Energy from earth's interior.
Can Igneous Rock become sedimentary? How?
Yes, if igneous rock is moved to Earth’s surface and exposed to energy from the sun, it could weather into small rock pieces that could form sedimentary rock.
What is compaction?
The process of sediment being buried and pressed together.
Where are we most likely to find igneous rock?
Near Volcanoes
Why are we likely to find Sedimentary Rock in windy and rainy climates?
Because weather like wind and rain start the Sedimentary rock formation process where weather breaks big rock in to small pieces.
What processes are associated with energy from earth's interior?
Melting, Cooling, Heat & Pressure.
Create an example of a model. How could you model weathering using the following materials:
Chocolate / Cutting Board / Hair Dryer / Grater
I can use the grater to break down the chocolate into smaller pieces.
What is cementation?
The process of sediment being glued together.
Name a location where you think we would find the most igneous rocks?
Japan or Hawaii
How does energy play a role in the different types of rock forming?
Different rock types need different energy sources. Energy from the sun weathers rock and energy from earth's interior melts rock into magma.
Create an example of a model. How could model metamorphic rock formation.
Chocolate / Cutting Board / Hair Dryer / Grater
I can use the hair dryer to apply heat and the cutting board to apply pressure.
What are the 5 steps of Sedimentary Rock formation?
Weathering, Erosion, Deposition, Compaction, and Cementation.
If Mrs. Reed wanted to model igneous rock formation and had the following materials: chocolate, microwave, and freezer. How would she use the materials to model the creation of new igneous rocks?
Mrs. Reed would first melt the chocolate in the microwave to model the creation of magma then she would put it in the freezer to model the magma solidifying.
Why are we more likely to find metamorphic rocks in San Francisco compared to Arizona.
Because SF is located near a plate boundary which creates high heat and pressure, Arizona is not located near a boundary.
What processes are associated with energy from the sun?
Weathering, Erosion, Deposition, Compaction, and Cementation.
Mrs. Reed uses the following materials to model sedimentary rock formation. She uses the grater to break down the chocolate into small pieces. What process is she representing?
Chocolate / Cutting Board / Hair Dryer / Grater
Weathering / Sedimentation