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Transcript
Unit 3 Study Guide Name___________________________ Support the idea of continental drift: 1. The theory that the continents were one time _________________. And over time, the continents drifted ____________. 2. ______________ of plants and animals have been found on other continents that they would normally not be. Ex. _________________ animal fossils can be found on cold continents and vice versa. Continents also fit like a _________________. 3. ______________ is the giant land mass made up of the continents all together. 4. What is convection? Convection is the transfer of ____________ through fluids like gas or liquids. Support the idea of sea-floor spreading: 5. During sea-floor spreading, new ocean floor is added when _______ molten material _____________. 6. ____________ rocks are pushed to the inside of the ocean floor and old rocks are pushed on the _________________ of the the ocean floor. 7. __________________________ is the idea the LANDMASSES have moved. ________________ is the idea the LAND AND the OCEAN FLOORS are moving. 8. Match the three types of plate boundaries with their characteristics: Convergent _______________ a. Dividing Divergent ________________ b. Slipping Transforming _____________ c. Colliding 9. Match the geological features that are most likely to occur at teach type of plate boundary. Convergent ___________ Divergent ______________ a. Earthquakes b. Mountains Unit 3 Study Guide Transform ___________ Name___________________________ c. volcano 10. T or F: Volcanoes and earthquakes form in similar areas. They are often found on the same plate boundaries. True False Possible essay/extended response questions: Explain the process of convection currents in the mantle and predict what would happen if Earth’s core cooled down in the future. Explain the ages of rocks along the mid-ocean ridge and beyond. Explain why studying the paleomagnetism of the ocean floor provides evidence for sea-floor spreading. Explain how temperature and density are two factors that influence convection currents. Explain how the Pacific Ocean can be shrinking but the Atlantic Ocean is expanding.
