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Social Studies, Geography, Science
8th
grade
Week 4 G8: Continents, Pangea, Convection currents
22 questions
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- 1. Multiple Choice1. What is the correct order of Earth’s four layers?1.Outer core 2. Inner Core 3. Crust 4. Mantle1.Mantle 2. Outer core 3. Crust 4. Inner Core1.Crust 2. Inner Core 3. Mantle 4. Outer core1.Inner Core 2. Outer core 3. Mantle 4. Crust
- 2. Multiple Choice2. What is ‘a large area of land that is joined together’?A continentA mid-Atlantic ridgeA volcanoCrust
- 3. Multiple Choice3. A continent is part of Earth’s what?MantleCoreCrustLithosphere
- 4. Multiple Choice4. There are two types of crust. What are they?Upper mantle and crustContinental and OceanicLithosphereInner core and outer core
- 5. Multiple Choice
5. How much of Earth’s surface is continent?
33% (or 1/3)
67% (or 2/3)
80%
20%
- 6. Multiple Choice
6. How much of Earth’s surface is ocean?
33% (or 1/3)
80%
67% (or 2/3)
20%
- 7. Multiple Choice7. How many continents are there in the world?FiveSevenEightSix
- 8. Multiple Choice8. What were the continents called when they were joined together?CrustPangeaWegenerAmerica
- 9. Multiple Choice9. What is the movement of continents over time called?PangeaWegenerContinental DriftMid-Atlantic ridge
- 10. Multiple Choice10. Evidence of Pangea is that the coastlines of South America, Africa and the east coast of North America join together. What is this called?Deserts and rocksFossilsContinental DriftContinental fit
- 11. Multiple Choice11. When were the continents joined together?200-250 million years ago200-250 years ago200-250 thousand years ago20-25 years ago
- 12. Multiple Choice12. What is the Mid-Atlantic Ridge?An oceanA mountain range at the bottom of the seaA volcanoPangea
- 13. Multiple Choice13. What creates new ocean floor?VolcanoesThe mantleSeafloor spreadingCrust
- 14. Multiple Choice14. What is the name of the upper mantle and crust?The lithosphereContinental and Oceanic crustMid-Atlantic ridgePangea
- 15. Multiple Choice15. Earth’s plates are the pieces of the lithosphere, but what layers of Earth are these?Inner core and outer coreMantle and outer coreCrust and atmosphereThe upper mantle and crust
- 16. Multiple Choice16. What is plate tectonics?Seafloor spreadingThe movement of platesConvection currentsMid-Atlantic ridge
- 17. Multiple Choice
17. What causes plate tectonics?
Plate tectonics
Seafloor spreading
Convection currents
Mid-Atlantic ridge
- 18. Multiple Choice18. Where does Earth’s heat rise from and flow to?It rises from the crust and flows to the coreIt rises from the mantle and flows to the crustIt rises from the core and flows to the crustIt rises from the crust and flows to the mantle
- 19. Multiple Choice19. The rising of heat from the core to the crust is called what?ConvectionSeafloor spreadingPlate tectonicsMid-Atlantic ridge
- 20. Multiple Choice20. What float along the convection currents?Inner coreThe upper mantle and crustOuter coreVolcanoes
- 21. Multiple Choice21. The Mid-Atlantic Ridge is the _ _ _ _ _ _ between plates?OceanCrustBorderMantle
- 22. Multiple Choice22. Which two continents are moving apart at 3cm per year, because of the Mid-Atlantic Ridge?North America and South AmericaNorth America and AfricaEurope and AsiaSouth America and Africa
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