What property of matter has caused the layers of the earth to be ordered in the way they are?

• Mass

• Density

• Weight

• Volume

The Earth is a perfect sphere.

• True

• False

Which of the following is NOT one of the mechanical layers of the Earth?

• Crust

• Lithosphere

• Mesosphere

• Inner core

What are the three compositional layers of the Earth?

• Core, mesosphere, lithosphere

• Crust, mesosphere, core

• Inner core, outer core, crust

• Crust, mantle, core

Which of these parts of the crust is thicker?

• Oceanic crust

• Continental crust

Which elements are most likely found in the earth's core?

• Iron and nickel

• Iron and aluminum

• Nickel and carbon

• Nickel and aluminum

What is the name for the compositional layer of the earth between the crust and core?

• Mesosphere

• Mantle

• Lithosphere

• Outer core

How do scientists study the composition of the Earth?

• Drilling down super deep

• Analyzing depths of oceans

• Seismic waves traveling through the Earth's surface

• Studying mountains

What causes seismic waves?

• Tsunamis and hurricanes

• Avalanches and landslides

• Blizzards and tornadoes

• Earthquakes and volcanic eruptions

Which is the outermost mechanical layer of the Earth?

• Mesosphere

• Crust

• Lithosphere

• Asthenosphere