Aquarium
An aquarium is always an excellent field trip. Not only do aquariums showcase how fish and aquatic mammals interact, but they also allow visitors to experience their feeding habits. Field trips to an aquarium offer distinct advantages for children. They are typically closed environments, meaning that they are safer for children than a zoo, for example. There are limited entrances and most areas are kept under surveillance to ensure that there is nothing wrong.
Natural History Museum
A natural history museum houses biological and geological specimens, and often exhibit the reconstructed skeletons of ancient animals. Dinosaurs are a popular option for these reconstructions, and natural history museums provide an opportunity for visitors to witness the animal and snippets of its natural habitat. Natural history museums are often involved in conservation efforts, and the staff most involved in the efforts are often willing to share their information with the public in the form of tours and lectures.
Conservation Walk
For a biology field trip, there are few things better for active-minded students than a conservation walk. Take children out of the classroom and let them experience what nature has to offer. Explain the different types of plants and how they're affected by chemical pollutants. Show them examples of healthy and infirm plants, and allow them to draw their own conclusions about the best ways to prevent such disruption. Include information about local animals and how they are affected by the loss of vegetation and chemical pollutants.
Astronomy
In order to see the stars without the interference of light pollution, students can take to the back country and enjoy the stars with no interruptions. Choose a spot well out from any light sources, and make sure to take plenty of chaperons with you. Give each student a map of the solar system or galaxy, and allow them to identify constellations and planets.