Rocks
_____ is a dark, greenish-black igneous rock.
Basalt
_____ is a type of SEDIMENTARY rock formed from large pieces of sediment rock.
Conglomerate
_____, like basalt, is made mostly of minerals feldspar and pyroxene.
Gabbro
_____ is an igneous rock that last for a long time.
Granite
_____ rocks form when magma or lava cools and hardens.
Igneous
_____ is a type of SEDIMENTARY rock that is fine grained, made mostly of the the mineral calcite, and forms mostly in oceans (but sometimes lakes).
Limestone
_____ rocks form when heat and pressure change rocks.
Metamorphic
_____ feels rough and scratchy, and is light in weight.
Pumice
_____ is a type of SEDIMENTARY rock that is made up of minerals the size of sand grains.
Sandstone
_____ rocks are usually made of pieces of rock that have been squeezed and stuck together.
Sedimentary
____ is a type of SEDIMENTARY rock that is made up of VERY SMALL sediments.
Shale
_____ is a type of SEDIMENTARY rock made up of smaller sediments.
Siltstone
The MOST common igneous rock that forms is _____.
basalt
Five examples of IGNEOUS rocks are _____, _____, _____. _____, and _____.
basalt, gabbro, pumice, obsidian, granite
Sedimentary rocks form when sediments are _____ and _____.
compressed, hardened.
Basalt (an igneous rock) is made mostly of the minerals _____ and _____. (hint: Bathsalts make you Feel Pretty)
feldspar, pyroxene
Granite (an igneous rock) is made of mostly large grains of _____, _____, and _____.
feldspar, quartz, mica
Rocks are classified by the way they _____.
form
The tiny holes formed in pumice are caused by _____ escaping from _____ as it _____.
gas, lava, cools
An example of an igneous rock is...
granite.
Metamorphic rocks form when rocks are changed by ____ and ____.
heat, pressure
Basalt, gabbro, pumice, obsidian, and granite are examples of _____ rocks.
igneous
Basalt forms from _____ at Earth's surface.
lava
Obsidian forms from _____ and looks like black glass because it _____ so quickly.
lava, cools
What is an example of a sedimentary rock?
limestone
Marble is a METAMORPHIC formed when _____ is squeezed and _____.
limestone, heated
Granite forms when _____ cools _____ below the Earth's _____.
magma, slowly, surface.
Igneous rocks are formed when _____ rock _____.
melted, hardens
Igneous rocks form when _____ rock _____.
melted, hardens.
Schist, gneiss, marble, slate, and quartzite are all examples of _____ rocks.
metamorphic
When existing rocks are subjected to great heat and pressure, _____ rocks form.
metamorphic
Three types of ROCKS are... (hint: mis)
metamorphic, igneous, and sedimentary.
Gabbro (an igneous rock) has larger _____ _____ than basalt.
mineral grains
Rocks are made up of one or more _____.
minerals
A. Weathering and erosion, B. deposition of sediments, C. squeezing of sediments, and D. sticking together of sediments are the ____________________________.
processes that help form sedimentary rocks
Never ending rock changes is called the _____ _____.
rock cycle
Weathering, heating, erosion, compaction, cementation, pressure, and melting are processes in the _____ _____.
rock cycle
Quartzite is a METAMORPHIC rock formed from _____ when heat fuses the sand _____ together.
sandstone, grains
The five types of METAMORPHIC rocks are _____, _____, _____, _____, and _____.
schis, gneiss, marble, slate, quartzite
GNEISS is a METAMORPHIC rock that forms when _____ is changed even more.
schist
Conglomerate, siltstone, limestone, sandstone, and shale are all examples of _____ rocks.
sedimentary
Slate is a METAMORPHIC rock formed when _____ is under great _____.
shale, pressure
An example of a metamorphic rock is...
slate.
Schist is a METAMORPHIC rock that has _____ layers of minerals.
wavy
When rock is slowly broken into pieces, it is called _____.
weathering
What are the 7 processes that can change rocks from one form to another? (hint: whecc pm)
weathering; heat; erosion; compaction; cementation; pressure; melting
