Reusable Code

 The Ribbon Bands in Microsoft 365 provide an indication of the amount of reusable code used across all their applications. Reusable code is a good idea since routines only have to be written once for many applications and once working can be left alone.

Glass Bending

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

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

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.

 

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.

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.

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.