Layers of the earth

What is the difference between magma and lava?

• Magma is found in the ocean; lava is found on land.

• Magma is underground; lava is magma that reaches the surface.

• Magma is a type of rock; lava is molten rock.

• Magma is a gas; lava is a liquid.

What is the outermost layer of the Earth called?

• Mantle

• Core

• Crust

• Lithosphere

How thick is the Earth's crust?

• 1-10 miles

• 3-25 miles

• 20-30 miles

• 5-15 miles

What is the layer of the Earth that is semi-solid and allows for convection currents?

• Crust

• Mantle

• Outer Core

• Inner Core

What is the innermost layer of the Earth called?

• Outer Core

• Mantle

• Inner Core

• Crust

What is the process called when magma rises to the surface?

• Volcanism

• Sedimentation

• Erosion

• Metamorphism

What is the temperature of the inner core?

• Approximately 7,200°F (4,000°C)

• Approximately 9,932°F (5,500°C)

• Approximately 12,000°F (6,600°C)

• Approximately 8,000°F (4,427°C)

What creates Earth's magnetic field?

• The Outer Core

• The Inner Core

• The Mantle

• The Crust

What is the layer of the Earth that is solid and made of iron and nickel?

• Outer Core

• Mantle

• Inner Core

• Crust

What layer of the Earth is made of solid rock and is where we live?

• Mantle

• Core

• Crust

• Outer Layer