Science Faculty
Year 12 Physics
Today, after having recently started Module 7 of the Year 12 Physics HSC course, The Nature of Light, we were able to conduct a simple experiment called Flame test to prove how light spectra vary with different elements. Prior to the experiment, we learnt how particular elements can absorb photons of light at very specific frequencies and emit back those photons as the electrons within the element's atoms change energy levels. To test this, we conducted an experiment in which we placed small amounts of varying chemical compounds over the flame of a Bunsen burner. We observed and recorded the colour of the flame, which changed depending on the elements. For example, compounds such as Copper Chloride produced a green flame, while Strontium Nitrate produced a bright red flame. Using a spectroscope, we could observe the emission spectra of a wide range of elements interacting with the flame and conclude that the spectra will vary depending on the element. Overall, this experiment has certainly heightened our understanding of spectra and the interaction between light and the elements within our universe. One of the use of Spectroscopy is to identify the elements present in different stars.
Dhruv P.
Year 12 Biology
In biology this term, we’ve been exploring the topic of infectious diseases. We’ve been learning about the different types of pathogens such as viruses, bacteria, and fungi — and how they manage to enter and invade our bodies. It’s been especially interesting to study how diseases spread through populations, and how factors like hygiene, vaccination, and immunity play a major role in preventing outbreaks.
What I’ve found most surprising is how many diseases and infections our bodies fight off without us even noticing. There’s a whole world of microscopic threats that our immune systems deal with every day, and I now have a much greater appreciation for how hard my body works to keep me safe. Overall, this biology module has been incredibly engaging, it’s made me think more deeply about how science connects to our everyday lives, especially in the context of current global health issues. I’m really enjoying learning how everything fits together and how understanding these processes can help improve health for individuals and wider communities.
Davina R.
