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Transcript
Name: Date: Period: PhET – Interactive Simulations Plate Tectonics Directions: The Earth is extremely dynamic! From the water cycle to the rock cycle, much of the Earth is always in motion. Much like a puzzle, the Earth is composed of numerous tectonic plates, each of which moves in a unique direction at unique rates. Throughout this activity, explore plate tectonics, the different layers of the Earth, and identify relationships between different variables such as density, temperature, and thickness. Dig deep into the Earth and don’t put “too much on your plate!” ACTIVITY 1 “CRUST” 1. How does the composition of the crust affect its density? ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ 2. Which type of crust is denser? a. Oceanic Crust b. Continental Crust c. Mantle 3. How does the thickness of the crust affect its density? ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ 4. Which layer of the entire Earth is densest? (hint: you may need to zoom out to see all layers) a. Oceanic Crust b. Continental Crust c. Mantle 5. What is the relationship between depth and temperature in the Earth’s interior layers? (hint: you may need to zoom out to see all layers) a. As depth increases, temperature increases b. As depth increases, temperature decreases c. The shallower the depth, the warmer the temperature 6. Which layer of the entire Earth is the warmest? (hint: you may need to zoom out to see all layers) a. Mantle b. Outer Core c. Core 7. Approximately how thick is the oceanic crust? ANSWER: ________________ 8. Approximately how thick is the continental crust? ANSWER: ________________ 9. Approximately how thick is the entire (upper and lower) mantle? ANSWER: ________________ 10. Approximately how thick is the outer core? ANSWER: ________________ 11. Approximately how thick is the inner core? ANSWER: ________________ ACTIVITY 2 “PLATE MOTION” 1. When two continental plates converge, ___________________ (feature) forms. 2. When two continental plates diverge, _____________________ (feature) forms. 3. When two continental plates transform, ____________________ (feature) forms. 4. When continental crust and oceanic crust converge, ___________________ (feature) forms. How long (approximately) does it take for volcanoes to form? APPROXIMATE TIME IT TAKES FOR VOLCANOES TO FORM: ________________ 5. When old oceanic crust and old oceanic crust diverge, _____________________ (feature) forms. 6. When old oceanic crust and young oceanic crust converge, ____________________ (feature) forms. 7. Which type of oceanic crust is densest? a. Old Oceanic Crust b. Young Oceanic Crust ACTIVITY 3 “BONUS RESEARCH QUESTION” 1. How does a WAX lava lamp work? ___________________________________________ ___________________________________________ ___________________________________________ ___________________________________________ ___________________________________________ ___________________________________________ ___________________________________________ ___________________________________________