MAGMA
True or False: Magma comes from volcanoes.
False: Magma comes from the center of the Earth. Volcanoes are just landforms that release magma.
What is igneous rock?
A type of rock formed from the cooling and hardening of magma
How is weathering different from erosion?
Weathering breaks apart a rock or changes its form. Erosion moves the broken down rocks by wind, water and ice.
What is sediment?
the process of rock fragments, soil and organic matter being formed due to weathering
What is geology and what do geologists study?
Geology is the study of rocks and Geologists are the people who study them.
Where does magma come from?
The Center of the Earth (Earth's Core)
What are the two types of igneous rocks and how are they different?
Extrusive and Intrusive. Extrusive rocks form quickly above the surface and Intrusive rocks form slowly below the Earth's surface.
True or False: A pothole is a product of erosion.
False. Erosion means movement was present. Weathering created this pothole.
How does sediment become a sedimentary rock?
Sediment is compacted together to create the shape of a rock and then cementation holds the sediment together like glue.
What are the three forms that a rock becomes in its life cycle?
Igneous, Sedimentary, Metamorphic
What is another name for magma?
Molten rock (liquified rock)
Name three different types of igneous rocks
Obsidian, Basalt and Granite
False. All rocks can have vesicles. They can form during the cooling process or be created via weathering.
What are the three different types of sedimentary rock?
Clastic, Organic and Chemical
What are the outside forces that help change a rock from igneous to sedimentary?
All rocks turn back into magma when they have experienced the ________ process.
Melting Process
Why haven't scientists found fossil remains in igneous rocks?
Fossils are imprints left from living organisms. The hot magma would burn up any remnants of life which is why fossil remains aren't found in igneous rocks.
Weathering is an essential part to creating ____________ rocks.
Sedimentary
What are the three examples of sedimentary rock we studied in class?
Limestone, Coal, and Sandstone.
What are two landforms that are created by flooding of the land?
River and Cliffs. Rivers are formed from rain changing the shape of the land. Cliffs are formed from waves crashing against the walls of land.
Fast cooling magma will produce ___________ igneous rocks.
"Extrusive" Igneous Rocks
What are the three main textures of an igneous rock?
An igneous rock's texture can either be coarse, glassy or smooth.
Which category of weathering helps compaction create a sedimentary rock?
Pressure. The pressure from an outside force compresses the tiny spaces between sediment in order to create a solidified shape.
What is the main difference between each form of sedimentary rock?
Clastic is a regular sedimentary rock. Organic sedimentary rocks contain pieces of life inside (fossils, plants, bugs, etc.) Chemical sedimentary rocks have no sediment.
What is every rock made of?
Minerals