Depends where you are located IN NJ. Because remember, it has to be a day trip, and it has to be within about an hour driving distance. Any further, and paperwork gets a little murky. And night stays get even more murky, and then they have to pay for hotels, and the school won't be able to fund you, and it is a huge mess to deal with over night stays. So, more information is required. Not saying I can't help you, but saying New Jersey isn't a lot to go on. Also, you need to do research, can a lab or Pharmaceutical company be able to support tours. Because remember, there is a capacity issue in private lab. And Pharmaceutical companies are working on confidential work, and most of them are working on that sort of work exclusively. So getting a tour is difficult. These are all factors that we need to take into consideration in picking a site, however, first off we need to know what city or town you are located in before we start searching an area around you that may suit your needs and give you proper guidance. It took me a month just to set up a field trip just to take my students to a field trip to a free science center. So this is going to be a labor of love ahead of you. Just preparing you for the road ahead of you.