Vocabulary/Extra
The decayed remains of once-living creatures.
What is humus?
True or False: Scientists have directly observed the different layers of the earth.
What is false?
The most common rock type in the Grand Canyon.
What is sedimentary rock?
The preserved remains of a once-living organism
What is a fossil?
The study of Earth's physical structure, its history, the processes acting on it, and the rocks of which it is composed.
What is the geology?
The outer layer of the earth.
Plant roots extending into rocks, freezing water, and wind erosion are all examples of this type of weathering
What is physical weathering?
Molten rock
What is magma?
Fossils that are assumed to represent a certain period in Earth's past.
What is a index fossil?
The view that most of the geological features of the Earth are the result of one or more catastrophes.
What is catastrophism?
The deeper in the Earth, the ________the temperature and greater the pressure.
What is higher?
The major carrier of sediments that makes them settle out in layers.
What is water?
A rock that is formed and then later on is changed as a result of heat and pressure.
What is metamorphic rock?
These 4 features describe this:
a. Most fossils are found in sedimentary rock
b. The vast majority of fossils on this planet are of hard-shelled organisms, like clams.
c. It contains the remains of some organisms still living today.
d. Fossils found in one layer of stratified rock can be considerably different from the fossils found in another layer of stratified rock.
What is the Fossil Record?
The view that most of earth's geological features are the result of slow gradual processes that have been at work for millions or billions of years.
What is uniformitarianism?
A layer of rock that is laid down by water.
What is sedimentary rock?
When an igneous rock is laced with iron and is exposed to water, the iron rusts and rock crumbles. This is an example of ___________
What is chemical weathering?
3 basic types of rock that make up the Earth's crust.
What is an igneous, metamorphic, and sedimentary rock?
A type of fossilization that creates carbonized remains of an organism, almost like a detailed drawing.
What is carbonization?
A surface of erosion that separates one layer of rock from another.
What is Unconformity?
The 4 layers of the earth.
What is the crust, mantle, outer core, and inner core?
The process of wearing or grinding something down by wind, water, or other natural agents.
What is erosion?
Inorganic crystalline substances found naturally in the Earth.
What is a mineral?
The fossilization process that occurs if a paleontologist discovers a fossil that is preserved 3-dimensionally and is completely made of rock.
What is petrification?