Secondary Science 

Sweet Smells of Chemistry – Exploring Esters in Unit 4

In Unit 4 of VCE Chemistry, students explore the fascinating world of organic reactions, including the formation of esters—compounds produced when alcohols react with carboxylic acids. Esters are known for their pleasant, fruity, and floral aromas, making them a key ingredient in both natural and synthetic perfumes.

During a recent practical session, students had the opportunity to create their own esters by selecting from a range of alcohols and carboxylic acids. For example, ethyl butanoate has the sweet scent of pineapple, while benzyl acetate is reminiscent of jasmine. By experimenting with different combinations, students were able to produce a variety of distinctive and aromatic esters.

The hands-on experience not only reinforced key chemical concepts but also filled the lab with an array of unexpected and delightful fragrances. Let’s just say, by the end of the session, the chemistry students were smelling far more like a perfume counter than a science lab!

Year 12 Final Biology Class

An exciting day in the Biology class. The final year 12 experiment  for the year, learning about the process of Natural Selection by growing Brine Shrimp (AKA Sea Monkeys) in various concentrations of salt water to see which environment promotes a greater hatching/survival rate.

Year 8 Science Flame Tests

The students dipped wire loops in different chemical compounds containing copper, sodium, potassium, strontium and lithium, and held them over the Bunsen Burner burn to observe the different coloured flames. This is the science behind fireworks, and the different colours they produce.

Dr Phil Bergen        Sarah Bergen

Science Teacher  Science Technician