Cloth, Thermo-Sensitive Reusable. Size: 210 mm x 220 mm. Made by Narika Corporation.

GSC International N-00017 Thermo-Sensitive Cloth. Reusable. Size:210 mm x 220 mm. Visualizing Heat Transfer Mechanisms: The thermo-sensitive cloth changes color from dark blue to pink at a temperature threshold of 30℃, providing an engaging way to visualize heat conduction and convection. Educational science experiment for students. Visualizing Heat Transfer Mechanisms: The thermo-sensitive cloth changes color from dark blue to pink at a temperature threshold of 30℃, providing an engaging way to visualize heat conduction and convection. By applying heat sources like a warm hand, a hot cup, or a heated surface, students can observe the flow and transfer of heat in real time.  Demonstrating Convection in Air: Using steam from hot water, students can explore how heat moves through the air via convection. The cloth’s color change highlights areas where the rising steam transfers heat to the cloth, offering a clear visual representation of convection currents.  Understanding Radiation and Heat Retention: Placing the cloth near a radiant heat source, such as a lamp or a heated metal object, allows students to observe how heat radiation affects the cloth’s temperature. Additionally, its ability to return to its original color when the heat source is removed demonstrates principles of heat retention and cooling. Exploring Subtle Thermal Changes: With its high sensitivity and low heat capacity, the cloth can detect even minor temperature variations. This makes it ideal for experiments that require precise observation of thermal changes, such as identifying temperature gradients or the effects of insulation materials.  Reusable and Interactive Learning Tool: The durable, reusable cloth (measuring 210 mm x 220 mm) provides an excellent hands-on resource for repeated experiments. Its responsiveness encourages student interaction and fosters a deeper understanding of key heat transfer concepts, including conduction, convection, retention, and radiation.  ⚠️ Proposition 65 Warning for California Residents: WARNING: This product may expose you to chemicals including styrene and/or bisphenol A (BPA), which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.