You must have a certain level of English ability to study in the UK with a STEM Program. In the United Kingdom, there are numerous English language competency exam alternatives. Such are IELTS, PTE, TOEFL, and others. Among these, IELTS is widely accepted. A minimum IELTS 6 may be required to obtain a Bachelor's degree. In contrast, for postgraduate studies, the IELTS score should be 6.5.