The Potentiometer Circuit

 A potentiometer circuit is created to test how much better these circuits are than those with a resistor in series. Using Locktronics, the circuits could be created from the circuit diagram within moments, and observations could be taken and recorded.

Plant Hormones

Investigating Plant Hormones. How does light affect cress growth? When plants are growing in a clinostat and on the windowsill, how does the clinostat affect which way the plant grows?

Wireshark Network Analysis

 Using Wireshark to look at the network and attempting to analyse what is going on the network for A-Level Computing. Most students are amazed at the network traffic on the system even when not much is apparently happening.

Allotropes of Carbon

I brought the allotropes of carbon to life with some real-life examples, such as a diamond cutting glass, carbon fibre tape cutting it with scissors, and looking at examples like my computer fan filter, drawing with a lump of natural graphite. Fullerenes beat me as I didn't have any!

 And the real life examples

Automatic Titrations

 One of the things I teach is repeating titrations to get answers within 0.5ml of all the others. Using the @pascoscientfic titration drop counter, I only have to do this once and produce a perfect titration curve and temperature curve at the same time.

Slide Rule

 How does a slide Rule work? I created a number line slide rule with two rulers as an example, then raced students with a calculator, showing that some old technology has some advantages, especially when you don't need 9 or 10 sig figs.

Strobe

 Using a strobe light at the same frequency as the vibrating string freezes the string, making the counting of the nodes and measuring the wavelength much easier, so the velocity can be measured.