Abstract
Experimental work is a fundamental component of Physics and Chemistry education, although limited resources often hinder its implementation in many schools. This paper presents three simple, safe, and low-cost experimental activities designed for Secondary Education students: cloud formation in a bottle, candle combustion, and the electrolysis of water using graphite electrodes. Each activity includes its scientific background and educational applications, demonstrating that rigorous, engaging, and accessible experimental learning can be achieved using everyday, low-cost materials.
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