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?
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 ___________
Theory says that a huge continent once existed. What is it called?
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?
A model car is a __________model.
What do geologist use to date rock layers?
When plates separate, a _________boundary forms
The study of the origin, history and structure of the Earth is called________.
What is the largest division of geologic time?
A Normal fault occurs because of ________
Missing rock layers caused by erosion are called________________.
What type of boundary is formed when plates collide?
Nonmetallic minerals that are valued for their beauty and rarity are called
Surface mines are____________
Open pit and quarry mines
To measure the mass of a horse, what unit of measurement would you use?
A mineral deposit that is large and pure enough to be mined is called a(n)___________
Earth's largest mass extinction occurred in which era?
The Earth's core has a liquid layer. What is it called?
Why do geologist use a geologic time scale?
To divide the Earth's history into manageable parts.
Elastic deformation leads to ________
The amount of ground motion determines the __________of an earthquake
strength or magnitude
The ___________ is the Earth's outermost layer.
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.
The point where an earthquake begins is called the ___________
The area on the surface of the Earth directly above the focus of an earthquake is called the __________
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 __________________
What are seismic waves?
Waves of energy from earthquakes that travel through the Earth in all directions.
Chapters 1, 3, 6, 7, 8