The Scientific Method / Properties of Earth

Plate Tectonics
Earthquakes

Volcanoes

Rocks and Minerals
100
Axis
These imaginary lines run horizontally across the Earth and measure distance north or south of the Equator.
100
Trenches
Features which form at the center of seafloor spreading regions are known as ______________.
100
Richter
The ________ scale demonstrates the intensity or damage caused by an earthquake.
100
Hotspots
Ocassionally, volcanoes such as Kilauea form from ________ in the middle of plates.
100
coal, natural gas
The two most common resources mined in Pennsylvania are ______ & _______.
200
hypothesis
What is the conclusion that has been drawn using substantial proof
200
Pacific
The __________ Ocean is currently growing in size due to seafloor spreading
200
Modified Mercalli
The __________ scale measures the energy or magnitude of the earthquake.
200
Subduction
Most volcanoes form due to _________, where one plate is forced under another.
200
Diamond
The hardest of the following minerals is ________.
300
correspondence
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.
300
Pangea
According to the theory of Continental Drift, all the earth’s continents were once joined in a “Supercontinent” known as ________________.
300
Plate Movement
Most earthquakes are caused by __________.
300
Sea floor spreading
Ocassionally, volcanoes such as Kilauea form from ________ in the middle of plates.
300
Compaction
The pressing and squeezing out of water and air between sediments is known as ________.
400
Longitude
These imaginary lines run vertically across the Earth and measure distance east and west of the Prime Meridian.
400
200 Million
This “Supercontinent” is believed to have started separating about __________ years ago
400
Elastic rebound theory
The bending of rocks and snapping back into place when stress is released is known as the _________.
400
pahoehoe
A “ropy” type of mafic lava which cools slowly is known as ______.
400
they are organic
Minerals have all the following characteristics except ________.
500
0 degrees S, 180 degrees W
The coordinates of the point where the Equator crosses the International Date Line are _________. a. 90 degrees S, 180 degrees E
500
Subduction
The process of one plate being forced underneath another plate is known as ____________.
500
epicenter
The point on the Earth's surface directly above where the earthquake occurred is known as the _________.
500
Viscosity
A substance's ability to resist flow is known as its ________.
500
Limestone
Most sinkholes in Pennsylvania form when pockets of __________ dissolve away.
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