Which layer of the Earth is composed primarily of solid iron and nickel?

• Crust

• Outer core

• Inner core

• Mantle

What type of boundary occurs when two tectonic plates move away from each other?

• Convergent

• Divergent

• Transform

• Subduction

The point on the Earth's surface directly above an earthquake's origin is called the:

• Hypocenter

• Epicenter

• Fault line

• Seismic zone

Which mineral is commonly known as table salt?

• Quartz

• Halite

• Calcite

• Feldspar

What is the process by which water changes from a liquid to a gas?

• Condensation

• Precipitation

• Evaporation

• Sublimation

Which gas is most abundant in Earth's atmosphere?

• Oxygen

• Carbon dioxide

• Nitrogen

• Argon

The rock type formed by the cooling of molten magma or lava is called:

• Sedimentary

• Igneous

• Metamorphic

• Clastic

What is the largest layer of the Earth by volume?

• Crust

• Mantle

• Outer core

• Inner core

What causes the plates of Earth's crust to move?

• Gravitational pull

• Solar radiation

• Convection currents in the mantle

• Ocean currents

Which rock type is formed from compacted and cemented particles?

• Igneous

• Sedimentary

• Metamorphic

• Foliated