Year 12 Practical Science Investigations


Year 12 students are investigating some interesting research questions in the sciences

Year 12 students are off timetable in the Science labs this week working on their Internal Assessment (IA) in the Sciences. The IAs are an individual practical investigation into a unique research question chosen by each student. Despite being the final week of the academic year, it’s one of the busiest weeks for the Science Faculty, with every Year 12 student designing an experiment and assembling (sometimes creating!) their own set of equipment. As you can see from the photos, it’s a real spectacle – it’s great to see our amazing Science Centre practical facilities being put to such good use!

Here is a selection of the research questions under investigation this year:

  • How does the concentration of a sodium fluoride solution affect the rate of reaction of a marble chip with hydrochloric acid?
  • How will the change in thickness of a wire affect the fringe separation of diffracted light?
  • Does urban density affect particulate pollution in two contrasting areas of Bangkok?
  • How do different protease sources affect the tensile strength of beef?
  • How does the tension in an elasticated string affect the speed of wave propagation?
  • How does the concentration of ethanol affect the rate of anaerobic respiration in yeast?
  • How effective are different organic preservatives at preventing mold on bread?
  • How does the hydrogen peroxide concentration affect the rate of oscillations during the Briggs-Rauscher oscillating reaction?

The Research Questions above are taken from all four Sciences: Biology, Chemistry, Physics, and Environmental Systems and Societies. Can you guess which research question is from which field of Science?!