CLEAPSS What's New

The latest resources published by CLEAPSS.

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Video - Smoke Cell (19 Sep 2025)

Using a smoke cell to observe Brownian motion

Tec Tip - Make your own photosynthometer (18 Sep 2025)

A guide on how to make this piece of equipment from commonly available prep room materials. Use this to measure rates of photosynthesis in aquatic plants.

G9 - Fume Cupboards in Schools (16 Sep 2025)

This guide is intended for those using, buying, or designing fume cupboards for schools and colleges. Information is provided on common problems, on choosing and installing appropriate cupboards an.. more

PP149 - Investigating osmosis of red blood cells (16 Sep 2025)

This procedure outlines how to observe lysis and crenation of red blood cells using different concentrations of saline solutions.

GL485 - Observing and analysing blood (15 Sep 2025)

This guide outlines how to observe different components of blood and also how to analyse blood for a number of biomolecules.

PS009 - Science class sizes, laboratory sizes and possible effects on safety (8 Sep 2025)

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

GL486 - Creating areas for environmental study on school grounds (5 Sep 2025)

This document contains information and supporting links on developing environmental areas in schools, from the initial planning stages through to management strategies for when you are up and running... more

GL479 - Disposal of food materials used-intended for use in secondary school science lessons (5 Sep 2025)

This guide summarises how to dispose of material originally considered as ‘food’ that has been used or intended for use in science following the change in food waste regulations.

Slime Mould Video (4 Sep 2025)

This video showcases the many different activities that can be carried out using the slime mould Physarum polycephalum.

PP159 - Using a smoke cell to observe Brownian motion (3 Sep 2025)

A simple guide on how to use a ‘Top cover’ model smoke cell to demonstrate Brownian motion.

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