Creating mesocosms – a self-sustaining, small-scale ecosystem – is one of seven required experiments that DP Biology students must complete. Usually, these mesocosms are built at school and students have access to many more materials and resources and support. This year, however, students and their teachers had to get creative and build their ecosystems with the things they had in their homes and yards and sheds. Students had to use their knowledge while grappling with important questions and decisions, like:
“What will be my source of carbon?”
“Do I want to build a terrestrial or aquatic ecosystem?”
“If terrestrial, do I want to build a desert of temperate rainforest ecosystem?”
With their mesocosms now built, students will experiment and compare their artificial constructions with naturally occurring ecosystems.