Earth Science
Study online at https://quizlet.com/_hmbok5
1. Plate tectonics: theory that explains the:
- movement of the continents
- changes in Earth's crust caused by internal forces
2. Plates: rigid blocks of crust and upper mantle
- move along the hot upper mantle
- make up the lithosphere
3. Divergence: - 2 plates move away from each other
- hot mantle rock rises
- creates new sea floor
- creates new oceanic crust (2-10 cm per yr)
-Mid-Atlantic
4. Convergence: - crust collides with another oceanic plate or continental plate
- oceanic crust sinks
- forms a trench
- forms volcano activity
- continent to continent plate collisions
5. Subduction: - oceanic plate, dense, slides under continental plate
- oceanic plate plunges into the mantle
- forms a trench
6. Trench: - forms b/c of subduction
- may cause a volcano
7. Transform Fault: - 2 plates slide past one another
- parallel
8. Rifting: - sea floor spreads
- occurs at mid-ocean ridges
- Red Sea
- new material is added to inner edges of separating plates
- plates grow larger, ocean basin widens
- how Pangaea was broken
- created Atlantic Ocean
, Earth Science
Study online at https://quizlet.com/_hmbok5
9. Atmosphere - Dry air components (3): - dry gas
- water vapor
- solid particles (dust from soil, etc.)
10. Atmosphere dry gases (4): (N2) Nitrogen - 78.09%
(O2) Oxygen - 20.95%
(Ar) Argon - 0.93%
(CO2) Carbon Dioxide - 0.03%
11. Atmosphere (4 layers) - temperature based: Troposphere (earth)
Stratosphere
Mesosphere
Thermosphere (space)
12. Troposphere: - closest to Earth's surface
- weather here
- most water vapor/dust
- increasing altitude = air temp down
- 7 miles long
13. Stratosphere: - little water here
- clouds are rare
- OZONE LAYER
- air temp = constant, increases with height (absorbs solar energy & ultraviolet rays from ozone layer)
14. Mesosphere: - air temp decreases with height
- coldest layer
15. Thermosphere: - extends to space
- O2 molecules absorb energy from the Sun
- temp. increases with height
- lower part = ionosphere
- upper part = exosphere
16. Ionosphere: - lower part of thermosphere (space)
- charged particles (ions) & electrons here
- gases excited by solar radiation, gases give off light; glow in the sky
- aurora borealis
Study online at https://quizlet.com/_hmbok5
1. Plate tectonics: theory that explains the:
- movement of the continents
- changes in Earth's crust caused by internal forces
2. Plates: rigid blocks of crust and upper mantle
- move along the hot upper mantle
- make up the lithosphere
3. Divergence: - 2 plates move away from each other
- hot mantle rock rises
- creates new sea floor
- creates new oceanic crust (2-10 cm per yr)
-Mid-Atlantic
4. Convergence: - crust collides with another oceanic plate or continental plate
- oceanic crust sinks
- forms a trench
- forms volcano activity
- continent to continent plate collisions
5. Subduction: - oceanic plate, dense, slides under continental plate
- oceanic plate plunges into the mantle
- forms a trench
6. Trench: - forms b/c of subduction
- may cause a volcano
7. Transform Fault: - 2 plates slide past one another
- parallel
8. Rifting: - sea floor spreads
- occurs at mid-ocean ridges
- Red Sea
- new material is added to inner edges of separating plates
- plates grow larger, ocean basin widens
- how Pangaea was broken
- created Atlantic Ocean
, Earth Science
Study online at https://quizlet.com/_hmbok5
9. Atmosphere - Dry air components (3): - dry gas
- water vapor
- solid particles (dust from soil, etc.)
10. Atmosphere dry gases (4): (N2) Nitrogen - 78.09%
(O2) Oxygen - 20.95%
(Ar) Argon - 0.93%
(CO2) Carbon Dioxide - 0.03%
11. Atmosphere (4 layers) - temperature based: Troposphere (earth)
Stratosphere
Mesosphere
Thermosphere (space)
12. Troposphere: - closest to Earth's surface
- weather here
- most water vapor/dust
- increasing altitude = air temp down
- 7 miles long
13. Stratosphere: - little water here
- clouds are rare
- OZONE LAYER
- air temp = constant, increases with height (absorbs solar energy & ultraviolet rays from ozone layer)
14. Mesosphere: - air temp decreases with height
- coldest layer
15. Thermosphere: - extends to space
- O2 molecules absorb energy from the Sun
- temp. increases with height
- lower part = ionosphere
- upper part = exosphere
16. Ionosphere: - lower part of thermosphere (space)
- charged particles (ions) & electrons here
- gases excited by solar radiation, gases give off light; glow in the sky
- aurora borealis
