Momentum inline and stacked

 Inelastic collisions comparing one @pascoscientific smartcart hitting two stacked and two inline. Does it make a difference? Not much since the wheels are nearly frictionless. But it is an interesting experiment to do.

Circle Theorems

Students remember all the Circle Theorems so that they can solve the A-level problems. Finding the Midpoint of a chord, then finding a perpendicular and another perpendicular, allows the student to find the centre of the circle.
 

Cathode Ray Tube

 Taking a good look at the insides of an oscilloscope to discover how a Cathode Ray Tube works. Once commonplace, now students don't know what it is, and the technology about how it works, and its history in the discovery of particles.

Practising Serial Dilutions

 Practising Serial dilutions as part of an A-Level Experiment Practice. Some of the students have to do practical experiments, and it is essential to get them to practice the sorts of things they will be doing.

Turing Tumble

Using the Turing Tumble by @UpperStoryCo, the students worked out some assembly language and followed the logic of what was happening to the bits. Using the ball bearings, the students saw how the gates set bits, so they could try adding some bits together and check whether they got the correct answer.

 

Chemistry Mechanisms

 A-Level  Chemistry learning mechanisms of chemical reactions. This is the reaction of Bromine with Propene. We need to draw the curly arrows from the bond to the atom, from the Pi Bond to the Bromine and from the Bromine-Bromine bond to the far Bromine atom.

Model Eye

 Learning how the eye works using the @pascoscientific demo eye and a light source.First, the students experiment with the variable lens, discovering how the lens's shape can be altered by adding or removing water. They then place this into the eye to obtain a sharp image on the retina.