Show:
The Rock Cycle
Rocks
True or False
Magma and lava
Classification of Igneous Rocks
100
This kind of rock forms when magma cools and hardens beneath the surface or as a result of a volcanic eruption?
Igneous rock
100
What are the 3 major types of rocks?
Igneous Rocks, Sedimentary Rocks, and Metamorphic Rocks
100
All Rocks are made of 2 minerals or more
False, some rocks are made of just 1 mineral
100
This kind of rock forms when Lava hardens
Extrusive Igneous Rocks
100
What are 2 characteristics to classify Igneous Rocks
Texture and composition
200
Sedimentary rocks begin to form when?
when existing rocks are broken down into sediments
200
name a volcanic rock that does not have a crystalline structure
Pumice or Obsidian
200
Sedimentary Rocks cannot contain fossils in them
False
200
Is it lava or magma that solidifies to make intrusive igneous rock?
magma
200
Large Crystals that form in Igneous Rocks are because of
slow cooling
300
Rock's at Earth's surface that are broken down into smaller pieces are called what?
Sediments
300
What is the process that squeezes, or compacts sediments?
compaction
300
Magma forms when rock melts deep beneath Earth's surface
True
300
How are magma and lava similar?
They both are the same in the way that they are used to describe melted rock and they can have the same composition
300
Why is the texture of some Igneous rocks glassy?
Because it cooled immediately
400
What causes Sedimentary Rock to turn into Metamorphic Rock?
Intense heat and pressure.
400
Rocks that form when magma hardens beneath Earth's surface are called what?
Intrusive Igneous Rocks
400
Erosion happens only by running water
False
400
When metamorphic rock melts beneath the Earth's surface is it magma or lava?
Magma
400
Rapid cooling of magma results in what kind of grained igneous rock?
Fine-Grained
500
What is the process in which rocks are physically and chemically broken down by water, air, and living things to produce sediment?
Weathering
500
There are 2 main groups of Sedimentary Rock, what are they?
Chemical and Clastic Sedimentary Rocks
500
Coal is considered a rock even though it is made of organic material.
True
500
How are magma and lava different?
Magma is melted material beneath Earth's Surface. Lava is melted material at Earth's surface.
500
Basalt is an Igneous Rock made mostly of what kind of colored silicate minerals
Dark-Minerals