Earth's Layers Review
Quiz by Andrea N Howard
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20 questions
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- Q1What creates Earth's magnetic field?the solid inner corethe movement of liquids in the outer corethe pressure in the crustthe rotation of the Earth30s
- Q2How thick is the crust?about 3,000 km1,220 kilometers5–70 kilometersabout 2,890 km30s
- Q3What is the density range of the crust?13 g/cm34.5 g/cm311 g/cm32.7 to 3 g/cm330s
- Q4What are the four layers of Earth?the crust, mantle, outer core, and inner corethe crust, mantle, ocean, and inner corethe crust, mantle, outer core, and oceanthe crust, mantle, outer core, and atmosphere30s
- Q5Which layer of Earth is the only one that can support life?the inner corethe outer corethe crustthe mantle30s
- Q6What is the composition of the crust beneath the ocean?molten rockiron and nickelbasalt rockgranite rock30s
- Q7What is the average temperature range in the mantle?500–1,000°C1,000–3,700°C0–500°C3,700–5,200°C30s
- Q8What primarily composes the outer core?granitesolid iron and nickelliquid iron and nickelmolten rock30s
- Q9What is the temperature of the inner core?around 1,000°Cover 5,200°Cabout 3,000°Cbetween 4,500–5,500°C30s
- Q10What causes magma to form in the mantle?the outer core's temperaturethe difference in pressure and heatthe Earth's rotationthe crust's movement30s
- Q11What is the outermost layer of Earth called?the outer corethe mantlethe inner corethe crust30s
- Q12What composition is primarily found in the continental crust?iron and nickelgranite rockmagmabasalt rock30s
- Q13How thick is the Earth's mantle approximately?5-70 kmabout 2,890 kmabout 2,260 km1,220 km30s
- Q14What is the temperature range of the outer core?1,000–3,700°C5,200°C0–70°C4,500–5,500°C30s
- Q15Which element is NOT part of the inner core's composition?magmanickelironsolid metal30s