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For more information, please see full course syllabus of AP Environmental Science
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Lecture Comments (4)

1 answer

Last reply by: Bryan Cardella
Thu Sep 24, 2015 2:22 PM

Post by Martina Maurici on September 20, 2015

Where can I look for tests ?

1 answer

Last reply by: Bryan Cardella
Thu Mar 26, 2015 4:03 PM

Post by Caleb Kierum on March 26, 2015

What parts of the time period scale are important to know for the test?

Earthquakes, Volcanoes, and Other Disasters

  • Important terms related to the geologic time scale include: eon, era, period, epoch, stage, strata, and superposition
  • The Earth is made up of the biosphere, hydrosphere, and the internal structure. The internal structure is made of the crust, mantle, and core. The crust is partially oceanic and partially continental
  • Moho is the boundary between Earth’s crust and the mantle, the mantle is most of the Earth’s mass, and the core is part molten and part solid
  • Plate tectonics, continental drift theory, and seafloor spreading are all important to consider in relation to the Earth’s crust
  • Boundaries between the tectonic plates include: transform, divergent, and convergent
  • Earthquakes occur when there is abrupt movement along a fault line, along tectonic plate boundary zones, or along mid-oceanic ridges. The Richter scale measures the relative magnitude of the movement and seismograms and seismographs pertain to the scale
  • Hurricanes begin over warm oceans in areas where trade winds converge. A thunderstorm can become a hurricane when cyclonic circulation comes into play
  • Tornadoes are swirling masses of air over land. They are most common in “tornado alley” and from the months of April through July
  • Volcanoes spew molten rock (lava) from out of the mantle, and they usually occur at subduction zones or mid-oceanic ridges. The major types are cinder, shield, and composite
  • Parts of a volcano include ash cloud, bomb, throat, branch pipe, fumarole, vent, magma chamber
  • Erosion is the movement of weathered rock/soil from one place to another. Factors affecting this include natural phenomena (wind, water, gravity) and human-influenced causes
  • Pesticides have positive and negative effects. Types include: antimicrobials, attractants, insecticides, and ovicides. Alternatives include: pest-resistant crops, crop rotation, and pheromone use

Earthquakes, Volcanoes, and Other Disasters

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Geologic Overview 0:06
    • Time Scales
    • Key Principles of Geologic Time Scale
  • Earth's Crust 7:42
    • Biosphere, Hydrosphere, and Internal Structure
    • Crust
  • Moho, Mantle, and Core 9:53
    • Moho
    • Mantle
    • Core
  • Plate Tectonics Summary 12:14
    • Continental Drift Theory
    • Five Main Factors to This Theory
    • Seafloor Spreading
    • Boundary Types
  • Results of Convergence 22:26
    • Oceanic Continental Convergence
    • Oceanic Oceanic Convergence
  • Earthquake Basics 24:47
    • Focus vs. Epicenter
    • Richter Scale
    • Seismograph, Seismogram
  • Earthquake Severity 31:04
    • What It Depends On
    • Severity Related to the Scale
  • Hurricanes and Tornadoes 35:56
    • Hurricanes
    • Tornadoes
  • Volcano Basics 39:24
    • Active Volcanoes Produce Magma at the Surface
    • 95% Are At Subduction Zones and Mid-Oceanic Ridges
    • Common Gases Released
    • Main Types of Volcano
  • Volcano Structure and Case Studies 47:24
    • Parts of the Volcano
    • Case Studies
  • Erosion 51:27
    • Natural and/or Human-caused
    • 3 Common Types
    • Desertification
    • Salinization
    • Waterlogging
  • Pesticides: Good and Bad 59:52
    • Pest
    • Positive
    • Negative
  • Types of Pesticides and Alternatives 1:04:36
    • Pesticide Types
    • Alternatives to Pesticide Use