Kimyasal madde diğerinde çözünür. Çocuklar kimyasal deneylerden hoşlanırlar. Keşif çok heyecan verici. Madde yeni maddelere dönüştüğünde kimyasal reaksiyon meydana gelir. Öğrenciler okulda kimya okuyor.. - Stok Fotoğraf ve Görsel

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