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A straight forward method using a low risk stain for observing mitosis in garlic root tip cells.
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Scanning for mitosis in garlic root tip cells
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Guidance on preparing orcein acetic (acetic orcein) for staining mitosis in garlic root tip cells.
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Instructions on how to fit a plastic eyepiece graticule & calibrate using a DIY stage micrometer. 
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Provides recommendations on suitable lab sizes and the number of students that can safely be taught in them. Includes advice on the impact, on both students and teachers, of overcrowding
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Covers the fundamental activities that use plants, and includes advice on which plants to use and how to keep plants at school. 
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*Please note due to the fact that schools are currently closed we are not posting out a copy of this Bulletin. We will review this when schools re-open.In this edition of the Bulletin :-- Editorial- M.. more
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In this terms issue :-- CLEAPSS has moved- New staff at CLEAPSS- Pupils using CLEAPSS resources- COVID-19 update- Staining and observing mitosis- Resources for transition events- Burning magnesium rib.. more
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Risk assessment guidance for hydrogen peroxide (H2O2).
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Risk assessment information for nitrogen oxides. Includes dinitrogen monoxide (nitrous oxide), nitrogen monoxide (nitric oxide), nitrogen dioxide and dinitrogen tetroxide.
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