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You can tell that the skin of an apple is smooth and that sandpaper is rough by how they look and feel. Learn more about these textures in this title that explores the properties that make something smooth or rough and shows various materials that have these characteristics.
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You can tell that the skin of an apple is smooth and that sandpaper is rough by how they look and feel. Learn more about these textures in this title that explores the properties that make something smooth or rough and shows various materials that have these characteristics.