• Visually demonstrate the expansion of metals
• Include 4 different rods and dial indicator
• Rod types include copper, brass, aluminum, and steel

Comprised of copper, brass, aluminum, and steel, this apparatus is an effective tool for demonstrating the coefficient of expansion of metals. The rod is placed inside a tube that has both an inlet and outlet for steam. Compare the expanded length of the rod to the temperature difference before and after the rod expands by using a thermometer. The extent of the rod's expansion is measured by a micrometer.