Calculating the acceleration due to Gravity

 Calculating the acceleration due to Gravity online using the @Pascoscientific picket Fence and and the light gate in its stand. After 20 repeats we managed an average of 9.765, which I felt was quite good for doing this online - live in front of an audience telling me what to do.

Young-Laplace Law

Hookean showed a nice demo of differential pressure that I hadn't tried before. When I tried to reproduce it I got very different results in the experiment and had to look into the history books of what was going on

 

Photosynthesis

 With the high temperatures and lots of sunlight, it seemed a good idea to look at photosynthesis. With the plants working well we got excellent results

Staining Cells

 Trying to see cells is difficult, so often we use stains to make parts of the cell stand out. Straining is not easy, you have to choose the right stain or stains and the preparation is important, so practice is important and an important part of learning.

55.4 C Pavement temp

 Looking at the temperature of the pavement outside the classroom, a Modest 55.4C at 11am today. Talking a dog for a walk will probably burn its feet.

Fun with Maths

 

Even with the A level students dressing up problems with a few pictures makes it more fun. Challenge to rescue the princess under European Union H&S ladder regulations (made up). Interesting the choice of princess names determines the want to rescue her. 

frying an egg in the sun | UK Heatwave 2022

We tried and succeeded in frying an egg in the Mid Day sun in the current heat wave