Show off your love of science with these fantastic pieces courtesy of somersault18:24.
We have three beautiful sterling silver pendants to give away, featuring horizontal DNA, an oxytocin molecule and a neuron.
To browse the collection, head to www.sciencejewelry1824.com
Click here to enter the quiz
This competition closes at 00:00 GMT on Thursday 2 November 2017.
Pick up your copy of issue 104 from all good retailers or from MyFavouriteMagazines!