Yes, INFORMATICS is a Scrabble word!

Letter values in Scrabble US: I 1, N 1, F 4, O 1, R 1, M 3, A 1, T 1, I 1, C 3, S 1.

Is it a valid word?

INFORMATICS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

the sciences concerned with gathering, manipulating, storing, retrieving, and classifying recorded information

Also: information science, information processing.

Not playable in Scrabble US: IP.