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Members only resource
PP161 - Comparing the distribution of stomata on the surface of leaves
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This practical procedure offers an entry-level activity comparing the number of stomata found on the upper and lower surfaces of leaves of Tradescantia zebrina.
words matched: surfaces
Members only resource
GL066 - A pattern of failure of radium-226 foil sources
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CLEAPSS has received a small but steadily increasing number of calls from schools regarding a red-brown discolouring on the surface of the metal disc of their radium sealed source.
words matched: surfaces
Members only resource
PS014 - Laboratory furniture and fittings, suppliers and manufacturers.
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Mainly lists of organisation which make, or can supply, and fit all of the furniture and fittings need to equip a school lab.  supports the guide G14 Designing and planning laboratories. 
words matched: surfaces
Members only resource
PP005 - Zinc electroplating
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Electroplating is an important industrial application of electrolysis and is studied in many pre-16 and post-16 courses. Electroplating processes often involve coating a metal object with another meta.. more
words matched: surfaces
Members only resource
PP154 - Using Hope’s apparatus to investigate water density
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This activity is designed to demonstrate that water reaches its maximum density at 4°C. This unusual behaviour  relates to hydrogen bonding and explains why ponds freeze from the surface down and not .. more
words matched: surfaces
Members only resource
GL270 - Aseptic techniques in microbiology
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This document describes the methods of aseptic technique to be used by teachers, technicians and students for effective microbiology, e.g. handwashing, swabbing surfaces, flaming, in microbiology.. more
words matched: surfaces
Members only resource
SRA039 - Propanone oxidation with a copper catalyst
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A hot copper plate is placed into an atmosphere containing propanone and the reaction takes place on the surface of the copper foil, making it appear red hot. As the concentration of air in the flask .. more
words matched: surfaces
Members only resource
GL509 - Getting started- Plant Science
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A diagrammatic guide on how to get started with plants, outlining the key actions with links to associated guidance.
words matched: surfaces
Members only resource
PP162 – Comparing the density of stomata in common plants and those adapted to dry conditions
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This method compares the density of stomata of mesophytes (most land plants) to xerophytes (adapted to dry conditions) through making leaf impressions.
words matched: surfaces
Members only resource
GL352 - Managing practical work in non-lab environments (COVID-19 pandemic)
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The CLEAPSS Helpline receives a number of calls about the teaching of science practical work in non-lab environments. In the normal running of a school we advise against doing this due to additional r.. more
words matched: surfaces
Showing results 1 to 10 of 287
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