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Construction - technical knowledge

These technical briefs look at the ways Practical Action have helped poor communities to make the best use of their own labour and to use locally produced building materials and techniques that they can afford and manage.

Technical briefs are documents produced by Practical Action which are freely available...

Bonding: delivery guide for AS and A level chemistry

This booklet contains a range of suggested activities and contexts for teaching about bonding at A level. Curriculum links include covalent bonding, ionic bonding, metallic bonding, bond enthalpy, bond angles, intermolecular bonding, links between bonding and properties, polarity, hydrogen bonding, London forces, ...

Regreen the desert

Practical Action have supplied this teacher's pack to challenge students to use their STEM skills to come up with solutions to a problem of water shortage in Sudan. The pack includes a PowerPoint presentation and Teacher Guide so that teachers can outline the problem to their students. The PowerPoint makes...

What Causes the Aurora? *suitable for home teaching*

This article from Catalyst looks at aurora borealis caused by the interaction of the solar wind with the Earth's magnetic field. It also explains how satellites are testing thoeires of how this happens. Auroral light emission occurs at roughly 100 km altitude. Energetic electrons in the solar wind cause the...

Redox Titration *suitable for home teaching*

From Nelson Thornes, these materials are aimed at A2 level students and help them to reinforce and practise their understanding of redox titration calculations. These include redox titrations involving iron, copper, manganate, sulfate and dichromate ions.

Mass Spectroscopy *suitable for home teaching*

This resource looks at how cutting edge science is being used to answer archaeological questions, as well as solving present day problems, such as the identification of meat in processed foods. Analysis of mitochondrial DNA was performed, at the University of York, on samples from skeletal remains unearthed by the...

Reaction Rates and Mechanisms *suitable for home teaching*

From Nelson Thornes, these resources help students to reinforce understanding about reaction rates, orders of reactions and the rate-determining step of a reaction. The activity challenges students to determine the order of a reaction from experimental data and deduce the reaction mechanism from this data. These...

Born-Haber Cycles *suitable for home teaching*

From Nelson Thornes, these materials are aimed at A2 level students and help them to understand the energy changes involved in Born-Haber cycles. The student activity sheet follows on from the study of Born-Haber cycles and the calculation of lattice enthalpies. The activities requires students to apply this...

Water Movement in Potatoes *suitable for home teaching*

This Catalyst article investigates osmosis: when water enters or leaves plant tissue (raw potato) according to the concentration of water in its surroundings.

The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 3.

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Alkali Metals *suitable for home teaching*

In the build-up to the Christmas Lectures in 2012, the Royal Institution published a new video for every day of advent revealing the elements that really excite and inspire people. Whilst on the set of Science Club, presenter Dara O'Briain explains why he is such a fan of the group of elements known as the alkali...

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