St. Peter's Primary Bray Blog

Our project was called ‘Cool Crystals’ and our question was ‘which produces the best result when growing crystals – sugar or salt?’

We found out that salt produces the best crystals. Adam’s granddad told us all about crystals. We learned that you have to use boiling water because the crystals won’t form with cold water. You need to use string so that the crystals don’t stick to the side of the glass container. We learned that saturation is when you mix in so much sugar or salt into the water that it won’t dissolve any more. It took more sugar until the sugar solution was saturated than the salt. You can watch a video of our work:

Mini-Scientist – Cool Crystals from St Peter’s, Bray on Vimeo.

Our favourite part about the project was mixing in the sugar and the salt. We were a little bit nervous explaining to the judges but it was a good day.

Thanks for reading our project.

Adam, Ryan and Lorcan