A variety of simple and more complex demonstrations can be performed using liquid nitrogen.

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A variety of simple demonstrations is performed using ‘dry ice’ (solid carbon dioxide).

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This edition includes the directors message, and notes about new categories of membership, Hazcards update, using liquid nitrogen, human tissues, americium radioactive sources, using WW2 gas masks, et.. more

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Bulletin 170 - Spring 2021- From the director- CLEAPSS Server upgrade (Feb half-term)- COVID-19 update- Working with microscopes- New guidance about working with plants- MiSAC Microbiology competition.. more

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