Material Sciences is an exciting field that researches and discovers materials that can be used for a wide range of purposes. It is an interdisciplinary field that combines chemistry, engineering, and physics. A material sciences degree will combine practical and theoretical work to give a holistic understanding of the materials that make up the world around us.
According to UCAS, the average offer for a Law course at UK universities is AAB - HOWEVER - this will differ depending on the university you apply to.
UCAS: https://www.ucas.com/explore/subjects/materials-science-and-engineering
USEFUL SUBJECTS TO HAVE STUDIED: Physics/Chemistry/Maths/DT/Biology/Computing Science
University Subject Guide: https://www.thecompleteuniversityguide.co.uk/subject-guide/materials-technology