United Scientific Convection of Gases Apparatus – Classroom Demonstration of Gas Convection with Acrylic Viewer & Activity Guide

Illuminate the invisible flow of heat and gas movement with the United Scientific Convection of Gases Apparatus—a dynamic teaching tool perfect for visualizing convection currents. Encased within a 22 × 10 × 11 cm metal box featuring a clear acrylic front panel, this kit includes two glass chimneys, a candle, and a cotton-filled wick as a smoke source.

By placing a lit candle under one chimney and generating smoke from the cotton wick into the other, students can observe how heated air rises and cool air descends—demonstrating convection in action. This creates compelling, real-time visual evidence of thermal motion, perfect for grades 5–12.

Designed for lecture halls, labs, and hands-on STEM lessons, the apparatus offers safe, repeatable demonstrations with an included activity guide to support lesson planning. Compact and easy to store, it has a shipping weight of just 1.25 lbs.