6.3 Checkpoint #1

1. Continental crust is compositionally closest to...

• Basalt
• Granite

2. What do scientists think generates Earth's magnetic field?

• the shifting of tectonic plates
• the spinning of the inner and outer core
• the flow of hot rock through the mantle
• none of the above

3. Which mechanical layer is the least dense?

• lithosphere
• asthenosphere
• mesosphere
• outer core
• inner core

4. Which mechanical layer contains the crust and upper mantle?

• lithosphere
• asthenosphere
• mesosphere
• outer core
• inner core

5. Which mechanical layer is liquid?

• lithosphere
• asthenosphere
• mesosphere
• outer core
• inner core

6. Mechanical layers classify Earth's interior structure based on...

• what material each layer is made of.
• how the materials behave.

7. Which compositional layer is #2?

• Crust
• Mantle
• Core

8. Earth's inner core is...

• a dense ball of solid metal
• a layer of molten metal
• a flexible layer of hot rock
• a layer of rock that forms Earth's outer skin

9. Earth's asthenosphere is...

• a dense ball of solid metal
• a layer of molten metal
• a flexible layer of hot rock
• a layer of rock that forms Earth's outer skin

10. What happens to temperature as you move into the Earth?

• It increases.
• It decreases.
• It stays the same.