By Mrs Smart (Science Teacher)

On Wednesday 3rd June, our Lower Sixth IB cohort were busy experimenting in the lab for the Chemistry Internal Assessment (IA) component of the International Baccalaureate (IB). 

The Chemistry IA is an opportunity for students to further investigate a topic that interests them about Chemistry. There is an element of personal engagement and students are able to formulate their own research question and plan their own investigation. The analysis can be from first-hand experimental data or a meta-analysis of data already published, although most students choose to carry out their own practical work. They then produce a final report which is worth 20% of their final grade. The experience is invaluable for further study and future careers as it builds the skills of project management and submission of reports to deadlines.

This year we have projects looking at: how the concentration of phosphoric acid in colas affects teeth; whether fluoride in mouthwashes and toothpastes can protect teeth against citric acid; the rate of hydrolysis (breakdown) of esters as found in perfumes; and the rate of decomposition of hydrogen peroxide to replicate the breakdown of ozone in the stratosphere.

Although hard work, it is always incredibly rewarding to see students participating in their own real-life research, helping to solve problems that are important to them.