Make Fizzy Rainbow Bath Bombs and Learn Solubility at SteelPark

SteelPark - Science Park filled with fizz and colour on January 17 when participants gathered at 15:00 for Bomba!, a hands-on workshop aimed at combining simple craft with basic chemistry. For 8 EUR a ticket, parents and children made fizzy bath bombs using common household ingredients and learned why some materials dissolve while others do not.

The workshop targeted the STARs program and invited visitors to experiment with how bicarbonate of soda interacts with acids and water to create foam and effervescence. Organizers focused on solubility principles in plain language, showing how ingredient choice and mixing techniques affect the bath bomb’s reaction and the way a rainbow of pigments and fragrance disperses in water. Activities were designed to be safe and non-destructive while still delivering a sensory, colourful result suitable for younger attendees.

Beyond the scheduled session at 15:00, SteelPark opened its renewed exhibition for hands-on exploration from 10:00 to 18:00. Visitors who came for Bomba! could also wander the upgraded displays, try other workshops available throughout opening hours, and buy puzzles at the reception desk to paint on site. The combination of short structured workshops and open exhibition time made the day flexible for families balancing naps, school runs, or weekend plans.

The practical value for attendees was immediate: participants left with a finished fizzy bath bomb, a clearer understanding of why bicarbonate of soda is used in everyday household chemistry, and a repeatable set of techniques they can try at home with inexpensive materials. For community educators and hobby crafters, the session offered a low-cost template for teaching STEM concepts through craft, and a model for running family-friendly, hands-on programs that blend science and sensory play.

SteelPark’s approach highlights how local science venues can serve as community hubs where learning and leisure overlap. For anyone interested in replicating the experiment, start with household baking soda, a mild acid, colourants safe for skin, and basic moulds - and remember that the effect depends on solubility and the controlled release of gas to make the fizz. With exhibitions open daily from 10:00 to 18:00 and workshop slots timed throughout the day, SteelPark has made it easy for readers to turn curiosity into a colourful, fizzy weekend project.