Igneous Rocks
Rock that forms from the cooling of magma below the surface or lava at the surface is called ____rock.
igneous
T or F: Metamorphic rocks are often some of the hardest rocks.
true
Small, solid pieces of material that come from rocks or living things are called ____________________.
sediments
Geologists classify rocks into three major rock groups based on how they form. These groups are _____, ______, and _____.
igneous, sedimentary, metamorphic
A series of processes on Earth’s surface and in the crust and mantle that slowly changes rocks from one kind to another is called _______.
the rock cycle
Igneous rock that formed from lava that erupted onto Earth’s surface is called ____rock.
extrusive
____rocks have their grains arranged in parallel layers or bands.
Foliated
____________________ is the process by which sediment settles out of wind or water.
Deposition
T or F: An igneous rock can turn into a sedimentary rock.
true
Heat and pressure deep beneath Earth’s surface can change any rock into ____.
metamorphic rock
Igneous rocks that formed beneath Earth’s surface are ____________________ rocks.
intrusive
When mineral grains are arranged randomly, we call them ____-____________ metamorphic rocks.
non-foliated
____is the process in which running water, wind or ice loosen and carry away rock fragments.
erosion
This rock an be foliated or non-foliated and changed by pressure and heat are all characteristics of what type of rock?
Metamorphic
T or F: Basalt and granite are metamorphic rocks.
false
Igneous rock that cools very quickly when it forms has a texture that is ____.
smooth and shiny with no visible grain
Metamorphic rocks are formed by heat and pressure deep beneath Earth’s surface or a ________ ______.
chemical reaction
Dissolved minerals and particles of sediment stick together to form sedimentary rock in a process called ____________________.
cementation
These rocks are formed when magma cools/hardens underground. (two word answer)
intrusive igneous
Fossils can be found in ________ rocks.
sedimentary
Which would have larger crystals – an igneous rock formed from magma that cooled deep below the surface or an igneous rock that cooled from lava on the surface? Explain why.
intrusive, cools slower beneath Earth's surface giving crystals more time to grow
Name an example of a metamorphic rock.
answers will vary
List the steps of sedimentary rock formation.
Weathering, erosion, deposition, compaction, cementation
When all the grains in a rock are large and easy to see, the rock is described as ____.
coarse grained
How do I find a Yooperlite?
365 nm wavelength flashlight
Lake Superior
Dark
other answers may apply