Types of Rocks
This describes the main types of rocks, how they form and how they change.
What is the rock cycle?
Diamonds and graphite are both made of this.
What is carbon?
A plant’s roots grow into a crack in rock. As the roots grow larger, they wedge open the crack. This is an example of...
What is mechanical weathering?
Most fossils are found in this type of rock
What are sedimentary?
These lines show the locations of hills, mountains and valleys
What are contour lines?
What are igneous rocks?
The term for the way light reflects off the mineral's surface.
What is luster?
Water, ice, and wind cause this type of weathering.
What is mechanical weathering?
These were widespread marine animals. They lived between 500 and 600 million years ago.
What are trilobites?
The difference between contour lines is called the
What is the contour interval?
These rocks form from heat and pressure.
What are metamorphic rocks?
This is the term for the color of a mineral's powder.
What is streak?
These types of rocks weather slowly because they are very hard.
What are igneous?
Most preserved fossil remains are hard parts, such as teeth, bones, or shells. True or False?
What is True?
Topographic maps show different_______ on a map
What are elevations?
These rocks are made of pieces of rock and debris that over time are cemented and compacted together.
What are sedimentary rocks?
This is a mineral's tendency to break along flat surfaces.
What is cleavage?
When rocks bump against each other and they change over time it is called
What is abrasion?
A________is an imprint of an organism left in rock
What is a mold?
The "V" on a topographic map indicates this
A stream passes through
Most of the earth is made up of this type of rock.
What is igneous rock?
This is the pattern in which a mineral breaks.
What is fracture?
This process breaks down and moves pieces of rocks.
What is erosion?
The fossil that forms in the mold is called a_______
What is a cast?
Oceanographers use this type of map
What is a Bathymetric map?