30 May 2025

Glass Bending


 Not really Chemistry, but learning to heat glass tubing and bend it to make delivery tubes for an experiment.

29 May 2025

Interferometer


An Interferometer setup using a @pascoscientific wire sound sensor to record the data. Sound from a loudspeaker connected to a signal generator is fed into the interferometer. The sound then travels in both directions around the tube to the Pasco sound sensor. The length of one of the paths is then changed, and the signal is analysed

23 May 2025

Chromatography


Rather than chromatography of coloured pens, it is a bit more exciting to see if the green extract of plant leaves is a single substance. Collecting leaves, grinding them up, and then running the Chromatogram in Petroleum Ether introduces solvents other than water.

 

22 May 2025

Determine the mass of an AA Battery


 Using the @pascoscientific Metre stick and the Torque Mass Hanger set to determine the mass of an AA Battery.

20 May 2025

Microwave


 My new @Lascells microwave kit has arrived. Now, we will be able to do a new range of experiments on microwave reflection, refraction, and polarisation. Although expensive, investing in a kit like this helps the students learn and remember new concepts in Physics.

19 May 2025

Serial Dilutions


 Some A-Level Biology involves practising experimental techniques, like creating serial dilutions to determine the unknown concentration. The students have to learn to be accurate, and this comes with practice.

18 May 2025

AI in Business


 Artificial Intelligence. There is a fundamental shift in how businesses will operate and compete as they embrace the new technology. Will it leave people jobless or create new, yet unimagined jobs? A Level Business - we investigate

Why Internal Resistance Confuses Everyone (And How to Actually Understand It)

  Why Internal Resistance Confuses Everyone (And How to Actually Understand It) “Your battery says 9V… so why does your circuit only get 7.8...