Investigating catalysts.

Investigating catalysts. Letting students do some experiments that they have not seen or done in school. Doing is so much better than watching or worse reading from a book. Decomposition of Hydrogen Peroxide using a Manganese dioxide catalyst. After the reaction filtering washing and drying the catalyst and recovering it. Only lost 0.14g and most of that was stuck to the filter paper.#iteachchemistry #Science #STEM

 

Force x Distance Problems

 Looking at Force x Distance Problems with Year 12 #Physics. The @pascoscientific Meter Stick Torque Set is extreme sensitive. We were using 1g masses to balance 100g but I may need some .5 or .25g masses #iteachphysics #science @chatphysics

Crude oil and fractional distillation

 Teaching looking at crude oil and fractional distillation. I wonder whether this experiment will soon become a thing of the past and be the sort of thing you tell your grandchildren you did. #environment

Looking at Electrolysis.

 Looking at Electrolysis. Setting this up is always fun and the students are amazed that when turning the small test tube upside down the water doesn't come out and they have to explain that as well. The best science is not just the stuff they have to do. #iteachphysics #Science

Making a Battery

 Whilst teaching electrolysis I found out the students knew nothing about what a battery was so we needed to make one. Using Copper and Zinc electrodes connected to a simple LCD clock to shown that it worked. The students found out it was nothing to do with the potato but the choice of metals and some metals made better batteries ( higher voltages) than others. #iteachphysics #Science #STEM

Changes in pressure

Looking at the changes in pressure when a conical flask of fizzy water is left to stand using a @pascoscientific pressure sensor to record the results. Would it say the same, rise or possibly fall? Year 12 trying to find out. #iteachphysics #Science #STEM 

Pasco Weather Sensor

 #Physics Taking wind speed readings using the PASCO scientific wireless weather station. Grabbing some monthly data on the weather in the UK. Relating to streamlining and speeds of cars and lorries. Looking at some wind modelling around built up areas and exposed areas. Surprising that even in low winds in some built up areas because of the layout of the buildings there can be distorted wind effects #iteachphysics #Science #STEM