Scientist Nina and her young experimenters discover how substances change and react. They investigate what causes grass stains, finding that all plants have pigments. Show more
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Scientist Nina and her young experimenters discover how substances change and react. They investigate what causes grass stains, finding that all plants have pigments. Show more
BBC Two is a lively channel of depth and substance, carrying a range of knowledge-building programming complemented by great drama, comedy and arts.
