1:1 Private Teaching in a dedicated classroom
How thick is the book? The students got out their rulers with vastly different answers then they tried the callipers and micrometers to get a better value - looking at accuracy and significant figures that someone can read to and why you might need it. #iteachphysics
Its that time of year to practise exam technique to improve the answers, structuring those long 6 mark GCSE questions. #Iteachphysics
Attempting Titrations and titration calculations. I like using Phenolphthalein because I can see the colour change whereas I can't see the colour change using Methyl Orange due to colour blindness. #iteachchemistry
Looking into how a Fresnel lens works. How do the ridges manage to magnify and give a clear image? #iteachphysics
Copper Sulfate creation with the water bath for improved safety. Using the water bath stops the students heating the acid up too much and reduces the hazards.
Using a @pascoscientific light source in daylight to do a refraction experiment. It was bright enough to work and work well.
Visited the Bett show today. Largely disappointed. only about 1/4 of the exhibitors. Normally I come back with want this or that - not this time. Not that surprising due to circumstances.
Bernoulli's Principle Faster air = lower pressure. Looking at everything from fun items to planes flying and wind and air pressure. #iteachphysics
More fun with the Van De Graaff Generator this time with Faradays ice Pail #iteachphysics
Busy day today with lots of experiments including using the @pascoscientific electrical conductivity meter to look at different salts and how their conductivity varied. Students thought best part was using the vortex mixer.
The graphite covered ping pong ball moving charge from one sphere to another and making the little hair I have stand on end. The ping pong ball acts as a charge carrier allow the Van de Graaff generator to discharge, but the sudden discharge has a lot of force behind it, launching the ping pong ball away towards the smaller dome. #iteachphysics
Using polarising lenses to see the effect on light and effect that some solutions have on the light passing through. #iteachphysics
Looking at a vertical edge and a horizontal edge through the gap of two pencils to observe the diffraction on light. The pencils are straight but they look bent in places as the light is diffracted #iteachphysics
Blowing down the funnel holds the ping pong ball in the neck of the funnel - counter intuitive
It’s
widely known that when methane is transported in pipes and it leaks the new
study has found that cookers leak methane even when they’re not being used. But
it is a worry because methane is 86 times more potent than carbon dioxide.
Methane makes up about 90% of natural gas which is used in our homes for
heating and cooking purposes. This recent study shows that even when heaters
and cookers are turned off methane leaks. Considering the amount of time a
cooker is used we can see that more than 75% of this leakage occurs when the
cooker is turned off. Ventilation can help the kitchen but it doesn’t help the
climate impacts of this Greenhouse gas and the results of burning methane. The only
way to do this is to cook on electric from a renewable source.
Looking at a broom to find the centre of mass. Its a simple trick to do. Hold out the broom horizontally balanced on two fingers. Move the hands together slowly and often you find one hand moves and the other doesn't when the hands meet - that'
s the centre of mass.
We find the centre of mass to help balance things like getting a picture straight on a wall and we use this idea of centre of mass to stop things blowing over because they are "top heavy".
Looking at the properties of Visking Tubing, The students looked at how it can be used in dialysis using counter flow theory and designing their own dialysis machines.
Demonstrating the Doppler effect with the @pascoscientific Doppler Rocket: As the rocket moves away, students can hear the pitch drop (red s...
