3 Pcs Heat Sensitive Sheet Temperature Sensitive Sheet 6 Color Changing Heat Sensitive Board, 24 to 34 Celsius Degree Transition for Science Experiment (10 x 10 Inch)

Spakon 3 Pcs Heat Sensitive Sheet Temperature Sensitive Sheet 6 Color Changing Heat Board, 24 to 34 Celsius Degree Transition for Science Experiment (10 x 10 Inch)

LEARNING ADVANTAGE Student Thermometers - Set of 10 - Dual-Scale - Mercury-Free - Easy To Read, Thermometers for Indoor Science and Classroom Use