Making a Clay Model of Earth's Four Layers

SciShow Kids

In this engaging Earth Science episode, host Jessi from SciShow Kids guides students on a journey to the center of the Earth—without ever leaving the kitchen table. The video explains why we cannot physically travel to the planet's core due to extreme heat and depth, and instead uses a hands-on modeling activity to visualize what lies beneath our feet. Concepts covered include the four main layers of the Earth: the Crust, Mantle, Outer Core, and Inner Core. The video breaks down the specific characteristics of each layer, such as temperature, state of matter (solid vs. melted rock), and relative thickness. Particular emphasis is placed on the Mantle being the thickest layer and the Crust being the thinnest, similar to the skin of an apple or the crust of bread. The host uses clear, age-appropriate analogies to make these abstract geological concepts concrete for young learners. For the classroom, this video serves as a perfect instructional guide for a classic STEM activity: building a cross-section model of the Earth using modeling clay. It provides step-by-step instructions that allow students to follow along in real-time. By cutting the finished sphere in half, students get a satisfying "reveal" moment that reinforces the concept of concentric layers, making it an excellent resource for visual and kinesthetic learners.