interview with unknown company

i want the house to pls hlp me. i,ve been invited for an interview and we are asked to bring writting materials,does it mean we will write test first? then 2ndly,the name of the company was not written in the advert, the advert just read: vacancy for science graduate trainee.pls what do i expect. thanks.
franca abey.

Abey,

You can expect some science questions, most improtantly if u have not had a test before now u can also expect test, Read more posts on preparing for Interviews here.
I wish u all da best.

Cheers.