2017 Mod6 Flashcards
Define the following terms:
A. Earth’s crust
Earths outer layer of rock
B. Sediment
Small, solid fragments of rock and other materials that are carried and deposited by wind water or ice examples would be send mod or gravel
C. Sedimentary rock
Rock formed when chemical reactions cement sediments together, hardening them
D. Igneous rock
Get the forms from molten rock
E. Metamorphic rock
Igneous or sedimentary rock that has been changed into a new kind of rock as a result of the great pressure and temperature
F. Plastic rock
Rock that behaves something mean and liquid and a solid
G. Earthquake
Vibration of the earths crust that results either from volcanic activity or rock masses Suddenlink moving from a fault
H. Fault
The boundary between two sections of the app that can move relative to one another
I.Focus
The point where an earthquake begins
J. Epicenter
The point of the surface of the earth directly above the earth quake focus
Scientists often separate the earth into five distinct sections name though sectionals
Atmosphere, hydrosphere, crust mantle and core
Of the five sections listed in question two, which can we observe directly
The crossed the atmosphere and hydrosphere
What do readings of the earth does the Moho discontinued this Kanuti separate? What about the Gutenberg does Kanuti what about the Lehmann discontinuity
The Moho this Kanuti is between the crust and the mantle. The Gutenberg disc in the ready is at the beginning of the court. The lemon does community is between the inner and outer core
What is the difference between the ways that igneous rock and sediment Terry rock form
Igneous rocks comes from lava/ magma. Sediment Terry rocks comes from sediments
Of the three types of flat discussed in this module, which type start out as different types of rock
Metamorphic rocks
What is unique about rocks in the asthenosphere
The raft is plastic rock
What is the main thing scientists observe in order to learn about make up of the earths interior
Seismic waves
Which is 7 AM at the import or the outer core? Why is it solid when the other is?
The inner core. Because of the pressure
Where is the magnetic field of the earth generated?
In the course
What causes the magnetic field of the year
A flow of electricity inside the course
Give a brief description of the two main theories that attempt to explain the earths magnetic field
There is the Dynamo theory which states that the motion of the elbow to her would create a magnetic field and there’s the rapid the K3 which says that the magnetic field is a result of the weather there it was created
What is the rapid – decay theory more scientifically valid then the Dynamo Siri
The rabbit decay Siri correctly predicted the magnetic field of the other planets
Why is a catastrophic event like the worldwide flood in the last time and essential part of the earths history if the rapid Becky Siri is true
Because it eould explain why the field reversed itself
What are two reasons that make otherwise good scientist ignore it the more scientifically valid rapid Dash the catering
Because the rapid DK Siri has makes the earth young lesson 10,000 years old and it relies on a global clock cataclysmic event a.k.a. the flood
Why would life cease to exist without the earths magnetic field
The magnetic field reflects cosmic rays from the sun that would otherwise kill wife
Where are the “plate” in plate tectonics
The plates are broken pieces of the earths crust
What can happen when plates collide with one another?
Mountains or trenches conform and order a new crust
What is Pangaea
The theory that the earth had one landmass in the past and it separated into the known continents
Why do otherwise good scientist ignore plate tectonics theory despite the evidence that it exists for it
Because play tectonics seems to indicate an old age for the earth even though it does not necessarily mean the earth is extremely old cataclysmic event could have induced rapid plate movement
What causes earthquakes
Plates scraping together when they move
Briefly describe the elastic rebound theory of earthquakes
First two plates try to move parallel teach other because they get can get caught up on the rough edges of the others plates the bend while trying to move when they eventually break free of each other rocks snap back into place causing an earthquake
Eight says mall a just the text and earthquake that measures for on the Richter scale. Later, he did text one that measures eight. How many more times energy does the second earthquake release as compared to the first
The earthquake that measured four equals 32 to the fourth power
So eight equals 32 to the eighit’s power to 32 to the eighth power divided by 32 to the fourth power equals 32 to the fourth power which equals 1048576
Name for times of mountains. What is required for the formation message
The phone like mountains require where to call plane wasn’t 14 mountains required like pushing together volcanic and don’t mountains require magma
