Geologic Time
What are the three time segments used to measure the lifespan of the Earth?
Eons, Eras, Periods
What are the four layers of the Earth?
Crust, Inner Core, Outer Core, Mantle
What are the three types of Boundaries?
Transform, Divergent, Convergent
What are the two types of Body Waves?
Primary (P)
Secondary (S)
The Ring of Fire
What are the three main methods used to date the Earth?
Carbon Dating, Fossil Dating, Rock Layer dating
What happens to the temperature of the Earth as we go deeper?
It increases
What are 5 of the 7 major plates?
Eurasia, North America, Pacific, Antarctic, African,
Indian-Austrialian, South American
Where is the earthquake the strongest and the most damage occur?
Hypocenter/Focus
What are the three types of Volcanoes?
Cinder Cone, Composite, Shield Volcanoes
What is the Law of Superposition
The oldest objects are on the bottom, the youngest objects are on the top.
Which type of crust is thicker and made of Granite?
Continental is thicker
Which kind of motion happens at Transform boundaries?
They slide past one another
Rank the three main types of waves in the order in which they would arrive at an object
P waves
S Waves
Surface waves
One of the benefits of Volcanoes is New Islands. Which type of Volcano create Iceland and Hawaii?
Shield Volcano
What are index fossils?
Fossils that exist everywhere for a short period of time
What is the layer of the earth that is solid metal?
Inner Core
What are the three pieces of evidence for Continental Drift?
Puzzle, Fossils, Rock Types
Which waves only travel through solids?
S waves
Which type of Volcano Hazard produces toxic gases and fiery particles that can destroy objects?
Pyroclastic Flows
What is the difference between absolute and relative dating?
Relative dating compares how old something is to other objects, absolute dating gives an exact age of an object
Which layer is composed of the Lithosphere and the Asthenosphere
The Mantle
What phenomena are created at Divergent Boundaries?
Rift Valley, Seafloor Spreading, Mid Ocean Ridges
What is the hypothesis that explains how earthquakes occur?
Elastic Rebound theory
What is Viscocity?