The absolute best thing to do is just go up to an employer and ask!

I'm not sure what exactly you want to be doing, but finding a science-related job is as simple as walking into the lobby of a pharmaceutical company or other place of research and asking to speak with someone about employment.
Just look through the phonebook for companies that catch your attention, look them up on the internet, and see if what they do interests you. Most private research companies are willing to hire interns, and they generally pay pretty well.
Good luck!
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