This prism is made using optical glass and will demonstrate that white light is made up of the colours of the rainbow. This is known as a spectrum. Sir Isaac Newton in the 17th century was the first to prove that white light was in fact made up of different colours. He used a glass prism in his experiments.
Supplied in packs of 12.
Size: 50mm long. Each face 28mm. Corners are ground for safety.
Below is a photograph taken of the spectrum generated by our prism.