Today we discussed pangaea and the evidence that Alfred Wegner had in order to support this theory. We created magnet replicas of this model and used this to make our own model. Each model had plant and fossils on each continent in order to help fit the continents together.
HW: Finish your Pangaea puzzle! Watch the rest of the videos for this unit and have your answers written down on the same piece of paper. The rest of these are due MONDAY 11/13. Study for a quiz on Friday!
Unit 4 Earth Layers from Brittany Dudek on Vimeo.
Earth Layers Questions
1. If seismic waves are deflecting off in different directions when they hit the inner core, what do you think is different about the inner core? a. It's solid b. It's a gas c. It's a liquid 2. Where is the crust the thinnest? a. Under the ocean b. under the mountains 3. Since both of these types of crust are igneous rocks, how do you think the crust was originally formed? a. by weathering, erosion, and deposition b. by tremendous heat and pressure then it uplifted c. by melting and cooling by volcanoes 4. What's the big difference between the outer core and the inner core? a. The inner core is solid and the outer core is liquid b. the inner core is thicker than the outer core c. the inner core is cooler than the outer core 5. List the layers in order of density and temperature (lowest to highest). a. Crust, core, mantle b. core, mantle, crust c. crust, mantle, core 6. List the layers in order of size (thinnest to thickest) a. mantle, outer core, inner core, crust b. crust, inner core, outer core, mantle c. inner core, crust, outer core, mantle d. crust, outer core, inner core, mantle 7. Which layer can support life? a. inner core b. crust c. outer core d. mantle
Continental Drift Questions
1. What is the name of the theory that involves plates that move on earth's surface? a. Pangaea b. Big Bang Theory c. Continental Drift 2. How could the mesosaurus fossils be found in two different continents? a. Continental drift theory b. ALIENS!!! c. It swam across the ocean 3. What does the law of superposition state? a. The older fossils are at the top of the layers of the earth b. The younger fossils are deeper c. the older fossils are deeper 4. How does fossil evidence support Wegener's hypothesis of continental drift? a. Plants and animal fossils show evidence of changes in Earth's polarity b. Fossil evidence suggests that the continents have always been in their current position c. No similarities exist between fossils on different continents 5. Where is the older crust when looking at a mid ocean ridge? a. Right next to the crack b. Far away from the crack Unit 4 Plate Tectonics from Brittany Dudek on Vimeo.
Plate Tectonics Questions
1. So where is the lithosphere? a. On top of the asthenosphere b. Below the asthenosphere 2. Since tectonic plates are on the lithosphere, what else can we call them? a. Lithospheric plates b. Asthenospheric plates c. paper plates 3. Why do tectonic plates move? a. Convection currents from the core b. Radiation from the core c. Conduction from the core 4. List the four layers of earth starting with the surface a. Crust, outer core, mantle, inner core b. crust, mantle, inner core, outer core c. crust, mantle, outer core, inner core 5. How does the density of material in Earth's layers change with depth? a. Decreases as you go down b. Increases as you go down 6. In Earth's crust, what type of rock is found under the ocean? a. Granite b. Basalt 7. The thickest layer of the Earth is the ___________________. a. Crust b. Mantle c. Outer core d. Inner core 8. What state is the Earth's inner core? a. Gas b. Liquid c. Solid 9. Which of the following layers makes up the greatest percentage of Earth's mass? a. The Mantle b. Oceanic Crust c. The core d. Continental crust
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