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4th Grade Science
Earth Systems
12. Earth's Structure
12.1 Internal Structure, Layers of the Earth
Journey to the Center of the Earth: Discover Earth's Amazing Layers
You will explore the four incredible layers hidden inside Earth from the thin crust you walk on every day to the blazing hot solid core at the very center.
What You'll Learn
You will learn Earth has four main layers inside it.
You can identify each layer by its materials and state.
You will discover seismic waves help scientists study Earth.
You will explore key terms like magma, lava, and lithosphere.
What You'll Practice
1
You will identify properties of Earth's crust, mantle, and core.
2
You will match key vocabulary terms to their correct definitions.
3
You will answer questions about Earth's layers and their states.
Why This Matters
Understanding Earth's internal structure helps you explain earthquakes, volcanoes, and the forces that shape the world you live on every day.
This Unit Includes
1 Video lesson
Practice exercises
Learning resources
Skills
Earth Layers
Seismic Waves
Tectonic Plates
Magma
Earth Structure
IL Curriculum Aligned