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The video tutorial guides viewers through designing a mold model using plaster. It begins with an introduction to the activity and lists the necessary materials, including plaster, water, a brush, a plastic container, a metal mold, a wooden stick, and cooking oil. The process involves coating the mold with oil, mixing plaster with water, pouring the mixture into the mold, and allowing it to set for at least a day. Finally, the metal mold is removed, revealing a solid plaster model that mirrors the mold's interior. The tutorial concludes with observations on the similarity between the plaster's exterior and the mold's interior, emphasizing the effectiveness of the process.

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