Scandinavia is Norway, Denmark and Sweden.
Nordics are Greenland, Iceland, Faroe Islands, Norway, Denmark, Sweden and Finland.
'Scandinavia' as a term has more to do with describing three countries with a very similar culture, plenty of shared history and (mostly) mutually intelligible languages. 'The Nordics' describes a geographic region in the sane way you would say, the Caribbean, Central Asia or the Iberian Peninsula.
Scandinavia is Norway, Denmark and Sweden.
Nordics are Greenland, Iceland, Faroe Islands, Norway, Denmark, Sweden and Finland.
'Scandinavia' as a term has more to do with describing three countries with a very similar culture, plenty of shared history and (mostly) mutually intelligible languages. 'The Nordics' describes a geographic region in the sane way you would say, the Caribbean, Central Asia or the Iberian Peninsula.