Heat Conductivity Ring Brass Copper Iron Aluminium

The Heat Conductivity Ring of Metals Apparatus enables students to compare the thermal conductivity of four different metals: Copper, Brass, Iron, and Aluminium. Each metal strip is mounted on a circular base with wax depressions, allowing for a visual cue when each metal heats and melts the wax. This hands-on approach is ideal for introducing the concept of thermal conductivity in a comparative and measurable way.

Mounted on a wooden base for insulation and safety, this apparatus demonstrates how material choice affects energy transfer and helps students understand applications in real-world contexts.

Educational Benefits:

• Compares conductivity of common metals
• Demonstrates heat transfer with visual feedback (wax melting)
• Reinforces concepts of energy flow and material science
• Encourages critical thinking and prediction

Classroom Ideas:

• Heat the centre and observe which metal melts wax first
• Rank metals by conductivity in lab journals
• Discuss real-world examples of thermal conductors and insulators

Specifications:

• Metals: Copper, Brass, Iron, Aluminium
• Base: Wood, 13cm diameter
• Features: Wax depressions for visual conductivity test
• Use: Alcohol burner or candle only (not Bunsen burner)
• Units: Each