Earth Science Unit 6 Study Guide Be able to identify and define Atmosphere: Hydrosphere: Lithosphere: Be able to label all the layers of the Earth and describe them. Crust: Mantle: Inner Core: Outer Core: Which is the thickest layer? Which is the thinnest layer? Which is the most dense? Be able to use a map scale Find locations on a map using or determining Longitude and Latitude Latitude is measured: ___________ or _______________ in degrees Longitude is measured: ________________ or ______________ in degrees What is topography? _____________________________________________ What do the numbers on the map represent? _________________________ What contour lines are close together what does this mean? ______________ A. What is the elevation at the star? ______________ B. Shade in the parts of the map that would be completely covered if a flood occurred at 40m elevation Name the city found on the map using the long/lat coordinates 1. 2. 3. 4. 33°N latitude, 112°W longitude 35°N latitude, 78°W longitude 46°N latitude, 96°W longitude 45°N latitude, 122°W longitude What are the three types of evidence for continental drift? What was the name of the supercontinent? ________________________ Explain the theory of plate tectonics What are convection currents and where in the Earth are they found? Draw the arrows and describe convergent, divergent, and transform boundaries Which process forms mountains? ________________________ Which process forms volcanoes? _________________________ Which process forms earthquakes? _____________________ What two geologic events can occur at the Ring of Fire? What are two things that should be included in an earthquake preparedness plan? When digging in rock, where can the oldest fossils be found? Name and describe the 8 physical properties used to identify minerals 1. 2. 3. 4. 5. 6. 7. 8. What process forms rock fragments (sediments)? How are rocks classified? What type of rock are fossil found in? How are igneous rocks formed? _____________________________________ How are metamorphic rocks formed? ____________________________ How are sedimentary rocks formed? ____________________________ Practice Questions 1. Movement of Earth’s crust along plate boundaries produces a. Fronts b. Tides c. Hurricanes d. Earthquakes 2. The surface of Earth is covered by a relatively thin layer of water called a. crust b. mantle c. hydrosphere d. atmosphere 3. How does the thickness of Earth’s oceanic crust compare to the thickness of continental crust? 4. How does the temperature of Earth’s crust compare to the temperature of Earth’s interior? 5. QuickTime™ and a decompressor are needed to see this picture. a. Identify two processes labeled in this rock cycle that must occur in order to change any rock into an igneous rock. __________________________________ and __________________________________ b. Identify two processes labeled in this rock cycle that change igneous rock into sediments __________________________________ and __________________________________ 6. Which statement best explains why these freshwater Mesosaurus fossils are found today in some rock layers in both South America and Africa? (1) Mesosaurus swam across the ocean between the continents. (2) The continents were once connected as a single landmass. (3) Global warming has been raising the sea level in the Atlantic Ocean. (4) The remains of Mesosaurus were carried across the ocean by predators.