On Monday of week three a 20 metre care racetrack appeared out of nowhere in the upstairs Court Precinct. How did it work, and what was it for?

With the assistance of Miriam Glasby from Geelong Tech School, every year 9 core science student had the opportunity to race CO2-canister propelled cars along the track. Students enjoyed the explosive acceleration of the cars, but they were also able to collect valuable data. So as to meet our needs under the IB programme to conduct a scientific investigation, Miriam created special 3-D printed cars with slots that allowed us to vary their weights. Do heavier cars take longer to accelerate? Are lighter cars affected more by air resistance? Ask your year 9 daughter - by now she should have a graph and some conclusions to talk to you about.