The video states that the velocity (v) of a wave moving along a string is related to the strings tension (T) and its mass per unit length (μ).  The unit of tension is the Newton (N) and the unit of mass/length is kg/m.

A simple interrogation of the formula v = √(T/ μ) shows that as T increases so too does...

In this investigation, using a tall tube filled with water, you let the water out the bottom of the tube, into a beaker/sink. You will record the level of the water at set intervals (every 5 or 10 seconds for example). You will then repeat this a couple of times and plot your average water level against time. You...

This Catalyst article investigates the healing of the ozone layer. The ozone layer in the upper atmosphere was damaged by CFCs, used in refrigeration. A ban on their use has allowed the layer to start recovering.

This article is from Catalyst: Secondary Science Review 2016, Volume 27, Issue 1.

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This paper, published in 2012, presents the emerging findings from a qualitative investigation into the impact on learners of the subject-specific continuing professional development undertaken by teachers at the National Science Learning Centre based in York, England. The paper presents the research findings from...

The magic of…is a collection of four resources, produced by Queen Mary College at the University of London, designed for teachers to use in the classroom with the intention of making learning engaging and entertaining. The four resources are all linked to the relevant curricula and provide inspiration when teaching...

This video applies physics to explain how trees can move water up their trunks over 10m, which is the natural limit of sucked water. The ideas of transpiration, osmotic pressure and capillary attraction are considered.  The explanation shows how a negative pressure is be obtained from the intermolecular forces and...

The video explores people’s understanding of what light is. A wide range of misconceptions and incorrect ideas are given. Newton thought that light consisted of particles, whereas Huygens thought light was a wave. Using a cardboard box to recreate Thomas Young’s double slit experiment the wave properties of light...

This is a nice example of an animation produced by students to explain one impact of climate change - ocean acidification.  You could link with a local university department to enrich a project like this, as has been done in this case - Ridgeway School in Plymouth ...

A multiple choice quiz on the periodic table for A/AS level chemistry.

Although it is written for OCR AS/A level chemistry A and B (H032, H432,  H033, H433), it can be edited to suit your scheme of work.

Produced by Science & Plants for Schools (SAPS), this investigation enables students to investigate the response of leaf discs from sun and shade plants to green light

Leaf discs from a sun plant and a shade plant are put in a sodium hydrogen carbonate solution. The rate of photosynthesis is seen by how...

This Catalyst article questions how heavy rocks can slide across a dry lake bed. The author introduces some theories to explain this phenomenon. 

This article is from Catalyst: Secondary Science Review 2016, Volume 27, Issue 1.

Catalyst is...

This Catalyst article looks at how plants colonise sandy beaches, producing dune systems and ultimately new land.

This article is from Catalyst: Secondary Science Review 2017, Volume 27, Issue 3.

Catalyst is a science magazine for students...