Quiz on Earth's Outer Core

What is the outer core's role in Earth's structure?

• It supports the crust

• It generates heat

• It creates the magnetic field

• It forms the atmosphere

What is the outer core's role in Earth's magnetic field?

• It weakens it

• It strengthens it

• It generates it

• It disrupts it

A student builds a model of Earth's layers and notes that the outer core is made of liquid metal. Which characteristic best describes the structure and composition of the outer core?

• Solid and cold

• Liquid and hot

• Gaseous and cold

• Solid and hot

Which layer of the Earth is responsible for Earth's tectonic plates?

• Crust

• Outer core

• Mantle

• Inner core

Tags

NGSS.MS-ESS2-3

What is the primary composition of the Earth's outer core?

• Silicate rocks

• Iron and nickel

• Water and ice

• Carbon and oxygen

Which of the following statements accurately describes the outer core's characteristics and their effects? Select TWO correct answers.

• Its solid state allows for efficient heat transfer through conduction

• Its liquid state enables movement that generates Earth's magnetic field

• Its high density causes it to sink below the mantle

• Its low viscosity allows for rapid movement of materials

• Its chemical composition makes it the most radioactive layer of Earth

Tags

NGSS.HS-ESS2-3

What is the density of water at room temperature according to the table?

• 0.5 g/cm³

• 1.0 g/cm³

• 2.7 g/cm³

• 7.8 g/cm³

Which material has the highest density at room temperature based on the table?

• Water

• Granite

• Lead

• Gold

Based on the table, which material is denser than iron but less dense than gold?

• Water

• Granite

• Lead

• Iron

Which material listed in the table has a density closest to the lower limit of the outer core's estimated density?

• Water

• Granite

• Iron

• Lead