Temperature-Sensitive Liquid Crystals
Safety Warnings
Warning: Heat Source Precautions
Purpose
Encapsulated liquid crystal sheets change color continuously across a calibrated temperature range, progressing from black through red, green, and blue. Students observe temperature-dependent physical properties and can visualize heat transfer patterns directly.
Figure 1:
The liquid crystal sheet set with reusable heat pad. Each sheet is calibrated for a different temperature range. Sheets appear black outside their active range, and show color where activated by heat.
Figure 2:
A liquid crystal sheet showing thermal patterns: the green/teal background indicates the sheet is within its active range, while the dark areas under the dish and letters show localized temperature differences.