What is the name of our current geologic age?
Age of __________________
Mammals
100
The Mercalli Scale measures________________
a. damage caused by an earthquake
b. energy released by an earthquake
c. energy released by a volcano
d. all of the above
a. damage caused by an earthquake
100
When an earthquake occurs, energy radiates in all directions from its source, which is called the __________
a.epicenter
b. focus
c. fault
focus
100
The resistance of a mineral to being scratched is called _________.
a. color
b. streak
c. hardness
hardness
100
A preliminary educated guess that tries to explain how or why things happen in the manner observed is a scientific ___________.
hypothesis
200
Which animals did NOT survive the Mesozoic extinction?
dinosaurs
200
Which of the following factors helps determine whether a volcanic eruption will be explosive or relatively quiet?
a. amount of dissolved gases in the magma
b. temperature of the magma
c. composition of the magma
d. all of the above
d. all of the above
200
A tsunami can occur when there is vertical movement at a fault under ________________.
a. a mountain range
b. the San Andreas Fault
c. the ocean floor
c. the ocean floor
200
How old is the Earth?
a. 6.4 billion years
b. 4.6 million years
c. 6.4 million years
d. 4.6 billion years
d. 4.6 billion years
200
What is a hypothesis?
An educated statement of prediction
300
The era of when the earth and oceans were formed as well as primitive life is known as _________________
Precambrian
300
The most explosive volcanic eruptions are associated with what type of volcano?
a. cinder cones
b. shield volcanoes
c. composite cones
c. composite
300
Which of the following actions would NOT keep you safe during an earthquake?
a. outdoors, take shelter near a building
b. cover your head and neck with your arms
c. indoors, crouch against an inner wall
a. outdoors, take shelter near a building
300
How could you determine if a sample of gold is pure?
a. Compare the sample's density with that of pure gold
b. Compare the sample's color with that of pure gold
c. Determine whether the sample is magnetic
a. compare the density w/ that of pure gold
300
What is the dependent variable?
It changes according to what the independent variable is.
400
During the Carboniferous period, large swamp forests extended across wet, tropical regions eventually forming
______________________________________
a. large coal forming forests
b. volcanic island arcs
c. mountain ranges
a. large coal forming forests
400
What is NOT true about the rift that developed between the eastern United States and western Africa 200 million years ago?
a. It eventually caused the breakup of Pangaea.
b. It marked the birth of the Atlantic Ocean
c. It began during the Mesozoic Era
d. It led to the formation of one global supercontinent
d. It led to the formation of one global supercontinent
400
What type of boundary occurs where two plates move together, causing one plate to descend into the mantle beneath the other plate?
a. transform
b. divergent
c. convergent
c. convergent
400
A metamorphic rock can be classified according to its____.
a. density and structure
b. texture and composition
c. color and composition
texture and composition
400
What is the independent variable?
The variable that we manipulate.
500
Where would the shell of an organism MOST likely be preserved as a fossil?
a. on a beach
b. on the top of a hill
c. at the bottom of a lake buried by a landslide
d. on the banks of a dry river bed.
c. at the bottom of a lake buried by a landslide
500
A volcanic bomb is a _____________.
a. very violent volcanic explosion
b. piece of semi-molten rock ejected as glowing lava
c. pocket of gas that is released suddenly
b. piece of semi-molten rock ejected as glowing lava
500
The lithospheric plates move an average of _________.
a. 5 inches per year
b. 5 feet per year
c. 5 centimeters per year
c. 5 cm/year
500
A conglomerate, a sedimentary rock, that forms as a result of ____________.
a. intense heat and pressure
b. compaction and cementation
c. rapid cooling
b. compaction and cementation
500
State the problem
Gather data and information
State the hypothesis
Test the hypothesis
Form a conclusions