Have the students actually make a Holiday chain to glue their food chain to! Check out the awesome FREE Food Chain Display Template at Teachers Pay Teachers: http://www.teacherspayteachers.com/Product/Food-Chain-Display-Template-1291556
My kids LOVED this interactive site for learning about foo chains. It provides a lot of examples and even shows them how it works. Food Chains - Interactive Learning Sites for Education
Food Chain Stacking Cups - make this for the nature center out of nice cups - mod podge photo images recycled from magazines
Environmental Education Ideas
Watch a fun science lesson for kids about producers, consumers, and food chains. Learn what makes a producer so different than a consumer and how they fit in...
...a Who Eats What food chain worksheet and then made a stacked food chain collage...
food chain game.pdf
Food Chains: What Comes Next?
Here's a terrific post on teaching about food chains to ESOL students.
Food Chains allows your class to have a hands-on experience learning the food chain for six different habitats.
First Grade Science and Social Studies
Food Chain Writing Activity (English & Spanish)