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Mid-Term Final
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What should you do if you are in a car and an earthquake happens?
Stop and stay inside!
Who studies plants and animals that live in the ocean?
Biological oceanographer
The uranium-lead method is useful in...
Determining the age of Earth's oldest rocks.
The area where two tectonic plates meet is called a ___________
boundary
Theory says that a huge continent once existed. What is it called?
Pangaea
How is the intensity of an earthquake determined?
The amount of damage it causes
How is a climate model related to a complex mathematical model?
The climate model has many variables that musts be processed by computers.
According to geologist, how old is the Earth?
4.6 billion years
When plates slide past each other, what type of boundary is formed?
Transform
A model car is a __________model.
Physical model
What do geologist use to date rock layers?
Index fossils
When plates separate, a _________boundary forms
Divergent
The study of the origin, history and structure of the Earth is called________.
Geology
What is the largest division of geologic time?
Eon
A Normal fault occurs because of ________
Compression
Missing rock layers caused by erosion are called________________.
Unconformities
What type of boundary is formed when plates collide?
Convergent
Nonmetallic minerals that are valued for their beauty and rarity are called
______________
Gemstones
Surface mines are____________
Open pit and quarry mines
To measure the mass of a horse, what unit of measurement would you use?
Kilogram
A mineral deposit that is large and pure enough to be mined is called a(n)___________
Ore
Earth's largest mass extinction occurred in which era?
Paleozoic
The Earth's core has a liquid layer. What is it called?
Outer core
Why do geologist use a geologic time scale?
To divide the Earth's history into manageable parts.
Elastic deformation leads to ________
earthquakes
The amount of ground motion determines the __________of an earthquake
strength or magnitude
The ___________ is the Earth's outermost layer.
Lithosphere
In order for a scientist to figure out the absolute age of a rock, he/she must...
figure out the rate of decay for a radioactive element in the rock.
Scientist believe that ____________was a major cause of the extinction of dinosaurs.
Climate change
The point where an earthquake begins is called the ___________
focus
The area on the surface of the Earth directly above the focus of an earthquake is called the __________
epicenter
The Richter magnitude scale measures the ______________________
strength of an earthquake
Most _________________occur along the edges of _____________ ___________.
earthquake; Tectonic plates
Sea-floor spreading takes place along the __________________
Mid-ocean ridges
What are seismic waves?
Waves of energy from earthquakes that travel through the Earth in all directions.
Author
martha.hulsey
ID
55237
Card Set
Mid-Term Final
Description
Chapters 1, 3, 6, 7, 8
Updated
2010-12-12T16:37:07Z
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