News from the Secondary School Science News Year 9 Edible Organ Systems In Science, we have been learning about which organs are part of which organ system and their functions. For homework, we were asked to make an edible organ system. On the day people brought in lots of goodies for us to eat and we were all able to describe what they were as well as their functions. We used a range of food for our models, ranging from cake to pasta and biscuits. We had a great time and we learnt from it too.
Year 12 have been working hard in AS Chemistry, conducting assessed practical work. They can be seen here making up a standard solution of Sodium Hydrogen Sulphate and then using it to determine the concentration of the unknown Sodium Hydroxide solution.
Year 13 conducted several experiments in studying the chemical reactions of organic substances. They participated in assessed practical work where they synthesised Aspirin (2-‐ethanoylhydroxybenzenecarboxylic acid ) from salicylic acid and ethanoic anhydride. They made the organic product, recrystallised and purified it and then determined the purity of their sample by measuring the melting point of their Aspirin sample. The results showed that their Aspirin was very pure. 20