Why is it that some people learn languages quickly and are really good, but some learn the sciences more easily?

Question: Why is it that some people learn languages quickly and are really good, but some learn the sciences more easily?
- Keywords:
  education,
  neuroscience
Asked by somcweymes to Andrew, Katie, Sadaf on 27 Jun 2013.
- Andrew Swale answered on 27 Jun 2013:
  
  It now seems that enlarged parts of the brain in certain individuals may well account for an increased aptitude for learning languages so I guess this would also apply to sciences too 🙂

Question: Why is it that some people learn languages quickly and are really good, but some learn the sciences more easily?