True or False: Fossils provide evidence as to how Earth was formed.
False
100
What kind of rocks form when minerals that are dissolved in a solution crystallize on Earth's surface?
chemical sedimentary rocks
100
Which are examples of sedimentary rocks?
a. granite b. limestone c. conglomerate d. sandstone
limestone, conglomerate, and sandstone
100
True or False: Metamorphic rocks are formed deep within Earth.
True
100
What type of metamorphic rock has it's grains arranged in parallel bands?
foliated
200
What is the type of rock fossils are almost always formed in?
sedimentary
200
Erosion and deposition play roles in the formation of what kind of rock?
sedimentary
200
What is slate a denser more compacted version of??
shale
200
On what basis do geologists classify rocks into one of the three groups?
how the rock is formed
200
Landslides and slumps are forms of...?
mass movement
300
What does an index fossil tell geologists about a rock layer?
the rock's relative age
300
What is it called when magma forces its way into and hardens in rocks?
intrusion
300
Which of the following is an example of an igneous rock?
a. basalt b. marble c. limestone d. gneiss
basalt
300
What is the type of sedimentary rock that forms when rock fragments are squeezed together?
clastic
300
On a mountain, where would the oldest layers of rock be found?
at the very bottom
400
What is a hollow area in sediment in the shape of an organism called?
a mold
400
What are the steps (in order) of the formation of a sedimentary rock?
erosion, deposition, compaction, and cementation
400
What is the most common form of extrusive rock?
basalt
400
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?
the rock that cooled below Earth's surface would cool very slowly forming large crystals
400
What does the law of superposition say?
The youngest layers of rock are near Earth's surface. The oldest layers of rock are deep within Earth.
500
What is a fossil that is a solid copy of the organism?
a cast
500
What is the process by which sediments are pressed together called?
compaction
500
What characteristics do geologists use to identify rocks?