Metamorphic Rocks
During the formation of metamorphic rocks, what is one event that leads to increased heat? A- sun warms rocks B- magma pockets rise C- friction occurs between sliding rocks D- lava at earths surface flows over rocks
Magma pockets rise
Which describes slate? A- non-foliated B- igneous C- does not split into layers D- grains arranged into parallel layers
Grains arranged into parallel layers
The image shows metamorphic rock. Which phrase accurately describes this rock? A- randomly arranged grains B- formed through sedimention C- formed by extreme heat and pressure D- grains that do not split into layers
NOT (a) Randomly arranged grains MOST LIKELY- (c) Formed by extreme heat and pressure
In the formation of metamorphic rocks, what effect do temperature and pressure primarily have? A- they erode rocks B- they create layers C- they made rocks smaller D- they changed existing minerals
NOT- (b) they create layers POSSIBLY- (d) Change existing minerals
Which are the two agents that are necessary in the formation of metamorphic rocks? A- erosion and heat B- heat and lava C- lava and pressure D- pressure and heat
Pressure and heat
During the formation of metamorphic rocks, what mostly causes pressure to increase? A- magma pocket rise B- gravity pulls on rocks C- rocks melt deep beneath earths surface D- rocks beneath earths surface are forced toward the mantle
Rocks beneath earths surface are forced toward the mantle
Which statement describes the formation of metamorphic rocks A- rocks beneath the surface melt B- rocks above the surface eroded C- rocks beneath the surface are forced toward the mantle D- rock layers near the surface decrease pressure on layers beneath them
Rocks beneath the surface are forced toward the mantle
Which type of rock is a foliated metamorphic rock? A- granite B- marble C- quartzite D- slate
Slate
Which describes gneiss? A- igneous B- formed from shells C- tends to split along bands D- grains randomly arranged
Tends to split along bands
Theas are two metamorphic rocks Which statement about the rocks is accurate? A- the rock on the right is foliated B- the rock on the left formed from granite C- the rock on the left is formed from cooled magma D- the rock on the right has randomly arranged grains
The rock on the right is foliated