Which layer is made of liquid metal (Fe and Ni)?

• crust

• mantle

• outer core

• inner core

Which layer is the hottest?

• crust

• mantle

• outer core

• inner core

Which layer is the thinnest?

• crust

• mantle

• outer core

• inner core

Which layer can be described as either Oceanic or Continental?

• crust

• mantle

• outer core

• inner core

Which layer is responsible for creating Earth's magnetic field?

• crust

• mantle

• outer core

• inner core

Which layer is described as plastic-like and slowly flowing?

• lithosphere

• asthenosphere

• crust

• inner crust

Which of the following statements are true?

• As you go deeper into Earth, pressure increases.

• As you go deeper into Earth, temperature increases.

• As you go deeper into Earth, the particles are packed tighter together (increasing density).

• All of the above.

The core is mostly made up mostly of which elements?

• Oxygen and Silicon
• Silicon and Magnesium
• Nickel and Iron
• Iron and Magnesium

The Nebular Theory is:

• A theory on how the Milky Way galaxy was formed
• A theory on how the universe was formed
• A theory on how the solar system will be destroyed
• A theory on how the solar system was formed

A nebula is:

• A cloud of ice
• A cloud of dust and gas
• A cloud of just gas
• A cloud of just dust