In this lesson, our instructor Bryan Cardella gives an introduction on earthquakes, volcanoes, and other disasters. He starts with a geologic overview, then gets into the Earth's crust, moho, mantle, and core, and plate tectonics. He continues with convergence and earthquake basics and severity, hurricanes and tornadoes, volcanoes, erosion, and pesticides.
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.
This book includes a comprehensive review of the key AP Environmental Science concepts and targeted strategies for acing every section of the exam. Additionally, the book includes two full length practice tests with full answer explanations.
This book is an updated manual that offers a brand-new diagnostic test to pinpoint the test taker's strengths and weak areas, two full-length practice exams with all questions answered and explained, a detailed review of all test topics, supplemented with practice questions and quizzes with answers, an overview of the test plus helpful test-taking strategies, and hundreds of diagrams and illustrations .