Science News

Year 10 Environmental Science

Ecologists study the distribution of living organisms in habitats to find out how healthy it is. They use many different sampling methods to provide quantitative data which is then analysed. 

Our Year 10 Environmental Science class have been doing just that – on our school oval. As shown below, students used a quadrat (a square frame to outline the sample area) to randomly sample the species richness/biodiversity in our own backyard. 

When sampling a population, the data collected must be random to ensure no bias.

Cassie Seel (CSE)

(Environmental Science Teacher) 

This week in Year 9 Science

Year 9 has been investigating the topic of Homeostasis. 

This the body’s ability to maintain a constant internal environment, such as body temperature, pH and blood glucose concentration. 

Homeostasis is maintained by the body cells communicating with each other through the nervous system and endocrine system (hormones). 

Here you can see 9M1 attempting to maintain homeostasis in a model “Homer Simpson” – it required organisation, control and communication, but they all managed to keep Homer alive! 

If you would like to read more about homeostasis with some examples, follow the link to read the CK-12 article:

Homeostasis | CK-12 Foundation

Tamara Green- Science Teacher