How Lava Lamps Work - Simple Science Illustration #1809886 (License: Personal Use)

This hand-drawn image depicts a classic lava lamp, featuring a transparent glass vessel containing green liquid and red wax blobs. The wax is shown in motion-rising due to heating at the base and cooling as it reaches the top-demonstrating convection currents. The sketch emphasizes core principles of density, thermal expansion, and phase behavior in a visually accessible way.

Used in educational content about thermodynamics, classroom science demonstrations, or DIY project guides; matches user intent to understand or explain how lava lamps function visually and conceptually.