Total Internal Reflection

I find this one of Physics bits of magic how total internal reflection works. Creates lots of fun predicting what might happen and then trying it out and seeing that something else happens and then trying to come up with an explanation and a rule. Real Science

Accuracy

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

Exam Questions

 Its that time of year to practise exam technique to improve the answers, structuring those long 6 mark GCSE questions. #Iteachphysics

Titrations

 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

Fresnel Lens

 Looking into how a Fresnel lens works. How do the ridges manage to magnify and give a clear image? #iteachphysics

Making a Salt for an Acid and Base

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.

 

Refraction

 Using a @pascoscientific light source in daylight to do a refraction experiment. It was bright enough to work and work well.