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science unit 3 earthquakes
Terms in this set (20)
What does the book of Job in the Bible have to do with the Ice Age?
Job was talking about how it was cold and icy so it could have been the ice age.
Which layer of earth makes up the plates of plate tectonics?
Which layer of earth is thought to be a solid iron sphere?
What do hot air balloons and ocean ridges all have in common?
They both rise because of hot air
Which plate is more dense → oceanic or continental?
Why does Haiti seem to experience more earthquakes than other places?
It is by the fault line in the Caribbean
What are at least two pieces of evidence that scientists have discovered that may indicate Pangaea was possible?
South America fits into Africa, and there are mountains in India.
What is the definition of plate tectonics?
the study of Earth's bedrock, earthquakes, volcanoes, mountains, and the forces and processes God used to create them.
What is seafloor spreading?
When new oceanic crust is formed
What is plate subduction?
Oceanic Plates are more dense (heavier) than Continental Plates which causes subduction of the plates.
What are three types of stresses that the Earth feels as a result of the Fall with the plate tectonics are moving? (Provide the definition of them all)
Shear Stress-forces acting in opposite directions on the same plate
Tension Stress-opposite directions (tug of war)
compression Stress-pushing down/against
What are the three types of plate tectonic boundaries that the Earth has as a result of the stress it feels? (Be able to explain the direction each of them moves with a picture or diagram and how this connects to how you handle stress)
Transform- plates sliding past each other, Divergent- moving away from each other, and convergent- move towards each other
Which earthquake body wave arrives first, has a small amplitude, and short wave length?
p-wave (primary -shorter wave length)
Which earthquake waves are the most destructive because they travel in an wave rather than directly?
What is the definition of epicenter?
Spot directly above the focus on the earth's surface
What math formula is needed to calculate S-P Lag time?
start time of S wave- start time of P wave
How do scientists calculate the magnitude of an earthquake?
Distance and the amplitude on a scale and where they meet in the middle is the magnitude.
How can we see God's redemption and restoration plan when we look at the aftermath of the Haiti earthquake? Use one example/testimony mentioned in class.
God uses bad things for good because families are united in tragedies. Makendy saved kids from dying in the nearby school. They are stronger because of the sharing and caring for one another.
Why can't scientists use just one seismic station to determine an earthquake's location? How do these multiple "fixed points" relate to our Christian life?
Because there are multiple fault lines, we need fixed people in our life so that we can grow in our faith and in our life.
Make sure you understand how to read seismographs and are able to use the information to calculate an earthquake's magnitude.
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