Clean educational science diagram of a volcano eruption shown in cross-section, in a friendly flat illustration style with soft colors. The main volcano sits in the center with a symmetrical cone, a glowing crater at the top, an ash plume rising above, and lava flowing down one slope. A cutaway reveals the inside in four clear parts: a magma chamber at the bottom, layered rock strata around it, a central vent rising through the cone, and side vents branching outward. Short clean readable labels only: Magma Chamber, Rock Layers, Vent, Crater, Lava Flow, Ash Plume. Thin arrows show magma rising and pressure moving upward. The background is a pale sky with a simple ground line, no paragraphs, no dense text, no logos, no photorealistic smoke.