Can you pass the Sci-Fi Sounds quiz?

Forget the great quotes from vintage sci-fi films, what are the indelible sound effects that capture the SF genre? Take this quiz and see (or hear) if you can recognize the classics.

Take the Sci fi sounds quiz I received 85 credits on The Sci Fi Sounds Quiz How much of a Sci-Fi geek are you?
Take the Sci-Fi Movie Quiz

Yeah, I'm a schmoe for bragging about a solid B grade, but then I'm not up on the classic 1950s sound clips that define the latter portion of the quiz. See if you can do me one better and post your scores in the comments section.