A great place to learn about farm animals and Amish life is the Amish farm and House.  I have visited this place as a kid and taken my kids there.  It is very informative.  See their website at
Amish farm house

Lehigh Valley Zoo

Another great local place to visit is the Lehigh Valley Zoo.  I have taken many field trips to this zoo in the past.  The kids and parents who went on the trip had a great time petting , feeding and looking at the different animals. It is closer than the Philadelphia Zoo and smaller than the Philadelphia Zoo so it is a good choice for smaller children.You can find them on the web at Lehigh Valley Zoo.

Oregon Dairy

Another great place to visit or take a class tour is Oregon Dairy.  They have tours for groups and this year is the dairy will include lessons plans about your trip. The following is copied from their web site at

http://www.oregondairy.com/

     

Oregon Dairy offers Store & Farm Tours to non-profit organizations and schools from March through October. Tours are scheduled for Tuesdays & Wednesdays & Thursdays from 9 am till 2pm.

Tour cost is $4.00 per person and the complete tour takes about 2 hours. Minimum needed for tour is 10 people.

New for 2013 - Oregon Dairy will provide teachers with a link to tour curriculum.  This will help in planning your pre-trip lessons and also your post-trip lessons. 

Click the link below to print out lesson plans:

www.discoverdairy.com

Weaver's Orchard

My family and I spend lots of time visiting Weaver's Orchard. They have goats, chickens, roosters, rabbits, baby chicks.  We get fresh vegetables and fruit from their farm and orchard.  They have special activities for Halloween and Easter.  Visit them at Weaver's Orchard

Farm

A great place to visit in our local area is Oley Turnpike Dairy. They have a free petting zoo and sell ice cream in their dairy/restaurant. Find them on the web at
http://www.oleyturnpikedairy.com/ZOO.html