Place the five steps of the scientific method in the correct order.
State the Problem,Gather Information,Form a Hypothesis,Test the Hypothesis,Draw a Conclusion
100
Seafloor Spreading is _____________.
The formation of new seafloor and the movement of older seafloor outward
100
The process of one plate being forced underneath another plate is known as ____________.
subduction
100
Most volcanoes form due to _________, where one plate is forced under another.
subduction
100
The most common type of coal found in Pennsylvania is _________ coal
bituminous
200
Place the layers of the Earth in the correct order from outermost (1st) to innermost (4th).
Crust,Mantle,Outer Core, Inner Core
200
The __________ Ocean is currently growing in size due to seafloor spreading.
Atlantic
200
The point on the Earth's surface directly above where the earthquake occurred is known as the _________.
epicenter
200
A “ropy” type of mafic lava which cools slowly is known as ______.
pahoehoe
200
_____________ is a technology where pressurized water and chemicals are used to fracture shale, in order to obtain natural gas.
Fracking
300
Why do we have seasons on Earth? How does direct sunlight impact the seasons?
Because the earth has a tilt and the sunlight hits different spots of the earth
300
Continental Crust is _________ and __________ then oceanic crust.
thinner, less dense
300
Waves produced by earthquakes are known as _________ waves.
seismic
300
Mafic lava is _____ and _____ than felsic lava.
thicker, darker
300
The two most common resources mined in Pennsylvania are ______ & _______.
coal, natural gas
400
The cooridinates of the North Pole are _______.
0 degrees E, 90 degrees N
400
This “Supercontinent” is believed to have started separating about __________ years ago
200 million
400
A minimum of ________ seismograph stations are required to pinpoint the location of an earthquake's epicenter.
three
400
The bending of rocks and snapping back into place when stress is released is known as the _________.
Elastic Rebound Theory
400
Most sinkholes in Pennsylvania form when pockets of __________ dissolve away.
limestone
500
Why isn’t the Earth a perfect sphere? Where is the Earth “stretched?” What causes the Earth to “stretch?”
the earth isn't a perfect sphere it is an oblate spheroid and its stretched around the side for example like spinning pizza doe,it expands.And the tilt and rotation cause this.
500
According to the theory of Continental Drift, all the earth’s continents were once joined in a “Supercontinent” known as ________________.
Pangaea
500
The ________ scale demonstrates the intensity or damage caused by an earthquake.
Modified Mercalli
500
Occasionally, volcanoes such as Kilauea form from ________ in the middle of plates.
hot spots (magma plume)
500
What characteristics make a mineral
they are organic,they occur naturally,they are solid