Electric Fields

Creating parallel and radial electric fields from a Static electric feed rather than an EHT device. It works better.

 

Fractional Distillation of Oil

Starting with Synthetic Crude Oil the students heated the oil progressively heating it to a higher temperature and collecting the fractions. The first fraction burnt but the subsequent ones apart from the last wouldn't burn.

 

Pressure inside a ballooon

 Is the pressure inside an inflated balloon greater than that in a deflated balloon? The debate raged on until with a @Pascoscientific wireless pressure sensor proved that the pressure was indeed 1.1 KPa higher in the inflated balloon - the elasticity of the balloon to blame.

Curves

 Now draw a nice smooth curve through all the points

Static Electricity to Direct Current Demo

 A good fun experiment taking the static electricity from a Wimshurst machine and passing this to a capacitor plate and using a graphite-covered ping pong ball to transfer the charges which can then be picked up on a beam galvanometer.

Biodiversity

Thank goodness some councils in England are seeing sense in biodiversity. The councils are starting to leave large areas of parks to go more native, and as a result, there is a burst of biodiversity coming along.

 

Barton’s pendulums

 Why do the pendulum’s the same length power each other but the ones that are different lengths don’t. Some homework to keep the students busy