* The specific university: Different universities have different admission standards. Highly prestigious universities will generally require higher grades than less selective ones.
* The specific science course: A highly competitive program like medicine, engineering, or a specialized area of biological sciences will have much higher admission requirements than a general science degree.
* The country: Grading systems and admission requirements differ internationally.
* Your previous qualifications: Some universities may consider your overall academic record, including grades in prerequisite subjects, alongside your final qualifications.
Generally, you'll need strong grades in science and mathematics subjects (e.g., biology, chemistry, physics, mathematics). A minimum GPA (Grade Point Average) is usually specified, but a competitive application often needs significantly *higher* than the minimum. You might need:
* A-level (UK): A's and B's, often with A's in relevant science subjects. Highly competitive courses might demand straight A's.
* IB Diploma (International Baccalaureate): A high overall score, typically 38 or above, with high grades in science and mathematics Higher Level subjects.
* High School GPA (US and Canada): A high GPA, often above 3.5 or 4.0 (on a 4.0 scale), with strong grades in science and math courses. Many universities also consider your SAT or ACT scores.
It's crucial to check the specific entry requirements for the university and course you are interested in on the university's website. Don't rely on generalized information; only the official admission requirements are definitive.