We got such a cool email earlier this week from the kindergarten that the Bunster attends. It made us smile.

David approached the fizzy experiment with wide eyes and an inquisitive mind. What began as a simple reaction quickly turned into a hands-on scientific investigation, and David was ready to take on the challenge.

We began with a basic setup: baking soda, vinegar, and a few drops of food colouring. David observed the fizzing reaction closely, then hypothesised what might happen if we changed one ingredient. With growing confidence, he suggested using more vinegar to see if it would create a bigger reaction, a clear demonstration of his scientific reasoning and prediction skills.

But David didn’t stop there. We added extra layers to challenge his thinking.

Variable testing: David compared reactions using cold vs warm vinegar. He noticed the warm one fizzed faster and immediately began wondering why. He explored the effect of temperature on chemical reactions, an advanced concept for his age.

Timed reactions: With a stopwatch, David measured how long the fizz lasted in different mixtures. He recorded the results with help, learning how to collect and analyse data.

Fizz-powered rockets: David helped build a small container rocket using baking soda and vinegar sealed with a cap. He worked through multiple trials, adjusting amounts and learning about pressure build-up, force, and safety in a controlled environment. He reflected after each launch: “That one went higher, maybe I added too much vinegar last time!”

Through this engaging exploration, David practised: Mathematical thinking (measuring, comparing, estimating amounts).

Language development (using descriptive and scientific vocabulary like “reaction,” “explode,” “pressure,” “observe”).

Cognitive flexibility (adapting ideas, testing different approaches).  Persistence and resilience (when the rocket didn’t launch the first time, he calmly reassessed and tried again).

Most importantly, David took ownership of his learning. He asked questions like a true scientist and embraced the messiness of discovery. The activity was more than just fizzy fun; it was a gateway into active learning, problem-solving, and higher-level thinking.  Well done David.