20 January 2024

Gram Negative Bacteria: Legionella Pneumophila

20 January 2024,
 0

“We are legion, expect us.” you thought this was a hacking video? Well, you guessed wrong because this is about a bacteria that resides […]


14 January 2021

Water Purification & Testing – GCSE Science Required Practical (Triple)

14 January 2021,
 0

Mrs Peers-Dent shows you how to test water for sodium and chloride ions before and after distilling. —————————– 00:00 Flame test for metal ions […]