Year 10s carry out research on bacteria and antibiotics.
Biology students are currently working through a module on communicable diseases with Dr Parker and have begun to form a scientific opinion on the most effective antibiotics.
Last week, they assembled a culture of harmless microbes in a petri dish to which they added eight antibiotic impregnated discs. They left the bacteria to incubate and for the antibiotics to do their work over the weekend.
In the next lesson, the girls took note of the ‘zones of inhibition’ in their dishes, the areas where the antibiotics had cleared away the microbes. Their task was to measure the diameter of each clear zone and find the average area.
This practical experiment put them in a position to list the antibiotics in order from the most to the least effective.