SCIENCE

YEAR 12 EXAM PREPARATION

Wishing our Year 12s the best of luck as they prepare and undertake their final exams. These students have worked tirelessly and incredibly hard throughout the year to prepare for these assessments. The key exam dates for Science are as follows:

• Friday 27 October - Biology
• Monday 30 October - Psychology
• Wednesday 8 November - Chemistry
• Thursday 9 November - Physics

I would also like to thank our dedicated Year 12 teachers for their continued support of their students. 

Ms Cherie Marks

Head of Science

EXTRACTING DNA FROM STRAWBERRIES

In Year 10 Biology, we are studying genetics and students participated in an experiment where we examined the DNA of a strawberry. Strawberries are not only delicious, but they are octoploid. This means they have eight sets of DNA chromosomes whereas humans only have two. The more chromosomes the higher the likelihood of finding DNA. 

In our prac, each student collected two strawberry pieces and sealed them into a plastic bag. We then squashed the strawberries to make a puree which gave more surface area. Salt, soap and alcohol were added to the mixture, opening up cells and allowing us to access the DNA. We then filtered our mixture into a test tube whilst we watched and waited for several minutes. Eventually, the DNA rose to the surface of the test tube, creating a clear, thick and sticky substance. 

Overall, it was wonderful to discover something new about a simple fruit that millions of people consume every day

Montana Aloi 10A