Igneous
How are igneous rocks formed?
when hot, molten rock cools and hard.
How are metamorphic rocks formed?
When rocks are subjected to high heat, high pressure
True or false. Sedimentary rock has fossils in them.
True
What is Erosion?
The process by which the surface of the earth is worn away by the action of water, glaciers, winds, waves, etc.
What happened when magma cooled slowly beneath the Earth’s surface?
It turns to intrusive igneous rock
Where are Igneous rocks found?
Deep seafloor and where volcanoes used to be.
How do other rock types change into Metamorphic rocks?
Extreme heat or pressure.
How does sediment become sedimentary rock?
When that sediment undergoes compaction and cementation it becomes sedimentary rock.
What are the three main rocks?
Metamorphic, Igneous, and Sedimentary Rock
How long do rocks hold heat?
As long as seven hours
What type of rocks are igneous?
Granite, Obsidian, and Basalt.
What type of rocks are metamorphic?
Gneiss, Marble, and Quartzite.
What type of rocks are sedimentary?
Sandstone, limestone, and shale.
What is Sediment?
Material deposited by wind, water or glaciers.
What distance below the Earth’s surface are the temperatures hot enough to melt most rocks?
Between 100 to 200 kilometers
What does igneous rock turn into?
sedimentary rock or into metamorphic rock.
What does metamorphic rock change into?
magma
What does sedimentary rock change to?
metamorphic rock or into igneous rock
What does gas bubbles look like in rocks?
Holes in rocks.
How hot does it need to be to melt rock into magma?
600 and 1,300 degrees
Which type of rock does igneous rock morph into due to pressure and heat?
Metamorphic
How is metamorphic used in everyday life?
Building materials and artwork.
How is sedimentary used in everyday life?
Sandstone and limestone are used for building stone. Rock gypsum is used to make plaster.
Define “extruded.”
it push out of the earth's interior and cools outside of or very near the earth's surface.
Which type of rock does compacting and cementing create?
sedimentary rock