Our incomplete rainbow experiment weighing heavily on my mind this morning, I couldn’t understand how, having followed all the instructions in the magazine, we could have failed to achieve a rainbow. I vaguely remembered doing a similar experiment at school with a prism but I can’t quite remember the specifics and it was bugging me. Our lesson felt incomplete and I had a little time on my hands so I took to my trusty Google friend (a reoccurring theme I feel) and felt utterly stupid when it came to light that the glass needed to be filled with water! How did I miss that one in the instructions? Well I didn’t as such the picture shows the glass partially full however no where in the written text does it mention water at all thus I forgive myself entirely.
"All you need is: A square glass or jar A sheet of white paper A torch or bright light Hold the jar close to the paper and shine the light through it to make rainbows appear on your paper." Magazine Text (I can't name as A tore the front cover off and I can't be certain it's the magazine I think it is).
Having discovered where we went wrong M rushed to find the torch, I grabbed a glass, filled it with water and hunted for a sheet of blank white paper upon which I stood the glass. After a few minutes of battle with Lil A and trying to stop him from using the glass of water to dip his hands in and wet the paper, we managed to get this little beauty :