yes she knows about all of the families powers
Bella gets her powers in the fourth book, breaking dawn, after Bella and edward get married. he changes her into a vampire.
Of course Bella knows the Cullens and Hales are adopted!!
She says morte. Bella knows a bit of Spanish, so she knows it means death.
When the Volturi come.
Charlie, Bella
Extreme apathy.
they all have powers but only edward, alice, bella,jasper, and renesmee have active powers
She has 2 Powers. 1.Bella's is that she is a shield, she is immune to any of the other vampires powers, and she learns to cast her shield over others to protect them as well. 2. Bella's 2nd power is she has extreme self control; Carlisle guesses this himself.
She can communicate with people with her mind.
Bella knows that Alice can be "hyper" at times.
The Cullen family, the volturi and Jacob black know that Bella is a vampire.