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Science Unit 2
Unit 2 Flash cards
| Question | Answer |
|---|---|
| 1. What is Wegener’s theory and what supports it? | =Continental Drift, and it is supported by the fact that the shapes of the continental coastlines fit as well as the same types of fossils and flora being found on different continents |
| 2. What features are caused by the movement of tectonic plates? | =Trenches, Mountians, Volcano, |
| 3. Explain convection cells. | =Pattern of the hotter material rising, and other cooler material sinking |
| 4. Which part of the Earth’s interior is directly related to the diffraction of P waves? | =The boundary between the lithosphere and the asthenosphere |
| 5. What are the layers of the earth, the basic composition of each layer, and what material (from which layer) is directly related to volcanoes. | =Crust, Mantle, Liquid core, Solid core, and mantle is directly related to volcanos |
| 6. What are the different types of volcanoes and the features that affect them. | =Lava domes,cinder cones, composite, Shield Volcanos |
| 7. How is sulpher dioxide related to acid rain and volcanoes? | =Sulpher Dioxide is release from the eruption of the volcano and into the atmosphere, and combines with water vapor in the atmosphere, and released as acid rain |
| 8. What specific type of features do you find along a convergent boundary? | =Mountains, Volcanoes, Trenches, seismic activity |
| a. continental-continental convergent boundary- | Two continents pushing against each other |
| a. divergent boundary undersea- | boundary that is pulling apart |
| a. oceanic-oceanic convergent boundary- | (Trenches) two oceanic plates pushing against each other |
| b. oceanic-continental convergent boundary- | (subduction). Oceanic butts up against a continental plate |
| 10. What is the S-P interval of seismic waves? | =The time between the primary and secondary waves |
| 11. How do you calculate the earthquakes distance using the seismometer? | =Find the difference between the start times then calculate the diffrence through a S-P wave interval chart |
| 12. What is a hot spot? | =Mantle Plumes, they are areas of hot, upwelling mantle |
| 13. What is oceanic seafloor spreading? What evidence was used to confirm it? | =It is a process that occurs at mid-ocean ridges, new oceanic crust is formed through volocanic activity and it slowly moves away from the ridge. This process also helps explains the continental drift. |
Created by:
dancing_cats
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