Thermochromic Pigment Changes Color

Its color changes and returns. Ask students to predict what will happen. Warm and cool the item. Key idea: The material's molecular structure changes with temperature, altering reflected light. Ask: Is the color permanently changing? Safety and cleanup: Use school-safe commercial thermochromic material. https://www.google.com/search?q=%22Thermochromic%20Pigment%20Changes%20Color%22%20science%20demonstration%20experiment