Thermal Conductivity Bar – Single Liquid‑Crystal Demonstration Bar

This Thermal Conductivity Bar provides a clear, visual, and mess‑free way for students to investigate how heat travels through different materials. Designed for safe and simple classroom use, the bar contains durable liquid‑crystal temperature strips that change colour as the bar warms, creating a vivid moving green 40°C zone that travels along the length of the material.

Unlike traditional wax‑based conductivity experiments, this system is clean, safe, and reusable, making it perfect for repeated demonstrations or student‑led investigations. The colour‑changing strip allows learners to observe temperature gradients and compare how quickly heat transfers through different bars (when used in sets).

Please note: The beaker, retort stand, and clamps shown in some images are not included.

Key Features

• Single thermal conductivity demonstration bar
• Embedded liquid‑crystal strips show temperature changes clearly
• Green zone indicates 40°C, moving as heat conducts
• Safe, clean, and no wax melting required
• Demonstrates temperature gradients and differences in conductivity
• Durable and ideal for repeated classroom use
• Suitable for school laboratories and physics demonstrations

Ideal for School Science Lessons

Perfect for KS3, GCSE, and A‑Level physics, this conductivity bar supports engaging demonstrations and hands‑on investigations into:

• Thermal conduction in solids
• Differences in conductivity between materials (when used alongside other bars)
• Visualization of temperature gradients
• How heat moves from hot regions to cold regions
• Comparing thermal properties of metals and non‑metals
• The effect of bar thickness, length, or material type on conduction speed

Teachers can use these bars to introduce key topics such as:

• Energy transfer
• Particle model of matter
• Specific heat and thermal conductivity
• Insulation and heating efficiencies

The dynamic colour-changing display makes abstract thermal concepts instantly understandable and visually memorable for students.