# Earth's Internal Layers Lesson Plan

Instructor: John Hamilton

John has tutored algebra and SAT Prep and has a B.A. degree with a major in psychology and a minor in mathematics from Christopher Newport University.

Educate your students about the internal layers of the Earth with this lesson plan. They will view a video lesson about the layers, take a quiz that is related, and participate in a hands-on activity that will reinforce new concepts about the layers.

## Learning Objectives

After studying this lesson, your students will be able to:

• Describe the various layers of the Earth
• Differentiate between the asthenosphere and the lithosphere
• Explain some of the characteristics of the various layers of the Earth

1-1.5 Hours

## Curriculum Standards

• MS-ESS2-1

Develop a model to describe the cycling of Earth's materials and the flow of energy that drives this process.

• MS-ESS2-2

Construct an explanation based on evidence for how geoscience processes have changed Earth's surface at varying time and spatial scales.

## Key Vocabulary

• Asthenosphere
• Continental crust
• Inner core
• Iron
• Lithosphere
• Lower mantle
• Nickel
• Oceanic crust
• Outer core
• Upper mantle

## Instructions

• Inform your students they will be learning about the internal layers of the Earth.
• Ask them if anyone is familiar with this particular subject. What do the students think the interior of the planet is made of? Why?
• Review the ten key vocabulary terms.
• Read the introduction, start the video Earth's Internal Layers: Crust, Mantle & Core, and pause for the first time at 1:28.
• What elements compose most of the Earth's inner and outer core?
• Are the inner and outer cores liquid or solid?
• Why doesn't the inner core melt?
• What does the flow of the slow-moving outer core produce?
• How far below us is the outer core?
• Next, restart the video and pause this time at 2:41.
• How thick is the mantle, and what percentage of the Earth is not the mantle?
• What rocks compose the mantle, and what is plasticity?
• Are the lower and upper mantle solid or liquid?
• What is another term for the upper mantle?
• How does convection affect fluids?
• Now, restart the video and pause again at 3:28.
• How does the asthenosphere affect the lithosphere?
• What are tectonic plates and why do they move?
• What three things are created by tectonic plates running into each other?
• Next, restart the video and pause for the final time at 4:43.
• How is the continental crust situated in relation to the ocean crust?
• How thick is the crust relative to the mantle and the core?
• Lastly, restart the video and view the section 'Lesson Summary.'
• Recap the entire video lesson, answer any pertinent questions, and have your students take the lesson quiz to demonstrate understanding.

## Activity

### Part A - Discussion

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