الطاقة الحرارية: قياس درجة الحرارة

The video tutorial explains how a thermometer works by demonstrating the expansion and contraction of a liquid mixture of alcohol and water. The process involves preparing the liquid, coloring it, and setting up a straw in a bottle. The liquid level is marked and observed as it changes in response to temperature variations, illustrating the principle that liquids expand when heated and contract when cooled.

What new insight or understanding did you gain from this video?