The Scientific Method / Properties of Earth
Plate Tectonics
Earthquakes
Volcanoes
Rocks and Minerals
100
If one bag of m&ms has only 1 blue m&m and another bag has 7 blue m&ms, there is great ____________ between the data sets.
variance
100
The theory of Continental Drift was first proposed by ________________
Alfred Wegener
100
Most earthquakes are caused by __________.
plate movement
100
Most volcanoes form due to _________, where one plate is forced under another.
subduction
100
The pressing and squeezing out of water and air between sediments is known as ________.
compaction
200
A ____________ is a conclusion which has been drawn using observation and repeated testing, but lacks substantial proof
theory
200
This “Supercontinent” is believed to have started separating about __________ years ago
200 million
200
The bending of rocks and snapping back into place when stress is released is known as the _________.
Elastic Rebound Theory
200
Ocassionally, volcanoes such as Kilauea form from ________ in the middle of plates.
Hot Spots (Magma Plume)
200
Which of the following is not a cause of erosion in Pennsylvania today?
Glaciers
300
In an experiment determining the heating properties of different metals, the ___________ would be the variable
types of metals
300
According to the theory of Continental Drift, all the earth’s continents were once joined in a “Supercontinent” known as ________________.
Pangaea
300
Waves produced by earthquakes are known as _________ waves.
seismic
300
A “ropy” type of mafic lava which cools slowly is known as ______.
pahoehoe
300
The two most common resources mined in Pennsylvania are ______ & _______.
coal, natural gas
400
We have five bags of m&ms. They contain 2, 3, 5, 5, and 5 m&ms each. What is the average number of m&ms in each bag?
4
400
Seafloor Spreading is _____________.
The formation of new seafloor and the movement of older seafloor outward
400
A minimum of ________ seismograh stations are required to pinpoint the location of an earthquake's epicenter.
three
400
A substance's ability to resist flow is known as its ________.
viscosity
400
The hardest of the following minerals is ________.
diamond
500
The coordinates of the point where the Equator crosses the International Date Line are _________.
0 degrees S, 180 degrees W
500
Features which form at the center of seafloor spreading regions are known as ______________.
Mid-Ocean Ridges
500
The ________ scale demonstrates the intensity or damage caused by an earthquake.
Modified Mercalli
500
Most of the world's volcanoes are found in a region known as ____________.
The Ring of Fire
500
Most sinkholes in Pennsylvania form when pockets of __________ dissolve away.
limestone
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