Show:
rock cycle
igneous rocks
sedimentary rocks
metamorphic rocks
vocabulary
100
Which rock was used by early humans to make arrowheads?
chert
100
What is the grain of igneous rock formed when magma cools quickly?
fine grained
100
How does clastic sedimentary rock begin?
as fragments of rock
100
What occurs when temperature and pressure insdie the Earth's crust change?
metamorphism
100
What is a metamorphic rock in which mineral grains are arranged in bands?
foliated rock
200
What do bends or folds in rocks show?
they have been deformed
200
What is an igneous rock that cools on the Earth's surface called?
extrusive igneous rock
200
What are layers of sedimentary rock called?
strata
200
The quality of a rock is based on size and shape of the mineral grains is called?
texture
200
weathering, erosion, depostion, and what are the processes that shape Earth's surface?
uplift
300
Besides being classified by their composition, how else are rocks classified?
by their texture
300
What rock forms from magma that cools below the Earth's surface?
intrusive igneous rock
300
What is it called when sediment is dropped and comes to rest?
deposition
300
What kind of metamorphic rock has its grains arranged in planes or bands?
foliated
300
The process in which sedimentary rocks are arranged in layers is called?
stratification
400
What is one way that magma forms?
when rock is heated
400
During the rock cycle, what forms when magma cools?
igneous rock
400
What are rocks made from animal or plant remains called?
organic sedimentary rock
400
How did humans use rocks in the past?
to make tools
400
What are minerals used to estimate temperature and pressure at which rock changes are called?
index minerals
500
What is the process called by which new rocks forms from old rocks?
rock cycle
500
The process in whcih rocks change shape is called?
deformation
500
Sedimentary rock is formed through the process of?
cementation
500
What has to increase in order for matamorphism to occur?
temperature and pressure
500
Weathering and what make rock fragments on Earth's surface?
erosion