Semester 1 Questions Flashcards
name the 3 different types of landforms
-plains = nearly flat or gently rolling land with low relief
-mountains = high elevation with high relief
- plateau = high elevation
how do you find the latitude and longitude differences between points?
count the lines between points
what is contour interval on a map?
change in elevation from one contour line to the next line
name the 3 different types of heat transfer
-radiation = heat transferred from the sunlight
-convection = boiling water in a pot
- conduction = metal spoon in hot soup
what is the inner core?
a dense ball
what part of the earth does the magnetic field come from?
liquid outer core
what are convection currents that occur within the earth?
the heated mantle and core drive convection currents in the asthenosphere. The asthenosphere slowly rises and spreads out
name each layer of the earth
-crust
-upper mantle
-lower mantle
-outer core
-inner core
describe the crust
-brittle, rocky outer layer of the earth
-least dense layer of the geosphere
-continental crust is about 4 times thicker than the oceanic crust
describe the upper mantle
-lithosphere & atmosphere
-uppermost part of the mantle and crust
-softest part of the mantle below the lithosphere
-hotter and under pressure
describe the lower mantle
- solid material extending all the way to earth’s core
describe the outer core
-layer of molten metal that surrounds the inner core
describe the inner core
-dense ball
-magnetic field
what is the theory of Pangea?
all continents were once joined together
who discovered Pangea?
Alfred Wegner hypothesized that at one time all continents were a single landmass but over time they had drifted apart.
what were 3 pieces of evidence Wegner used to support his hypothesis of Pangea?
-land features matched up
-fossils from the same animals and plants existed on separated pieces of land
-climate change evidence
Wegner could not provide an explanation for the push or pull of the continents. Explain what happened after that
his hypothesis was rejected until Henry Hess suggested sea floor spreading
what were the 3 pieces of evidence that Hess used to support his idea of seafloor spreading?
-molten material
-magnetic strips
-drilling samples
what is our role as humans on God’s earth?
to be good and wise stewards of the earth’s resources
why do secular and Christian scientists often arrive at very different conclusions about the same geologic data?
they start their examination of the evidence from different worldviews
what is the most important quality of a good scientific model?
it is workable
what is an inorganic mineral?
a mineral with no materials that were once part of living things
what is the repeating pattern of a mineral’s particles forming a solid called?
crystal
what is the hardest known mineral?
diamond
