Project Learning Tree

Food chain worksheet for grades 3-5

Engage your students in a hands-on activity to discover the many ways that plants and animals of a forest ecosystem are connected.

Web of Life worksheet and activity

This hands-on activity helps students in grades 3-5 put their new knowledge about food chains and food webs into practice. It also explores interdependent relationships in ecosystems as part of the Next Generation Science Standards (NGSS).

This activity is part of Project Learning Tree's new e-unit on Energy in Ecosytems for grades 3-5, so be sure to check out the full curriculum!

Food chain worksheet and activity

About Project Learning Tree

Project Learning Tree helps develop students’ awareness, knowledge, and appreciation of the environment, builds their skills and ability to make informed decisions, and encourages them to take personal responsibility for sustaining the environment and our quality of life that depends on it. 

For the last 40 years, Project Learning Tree has trained 700,000 educators to help students learn how to think, not what to think about complex environmental issues. 

Download the free Web of Life worksheet and activity

Energy in Ecosystems cover

Want more activities and lesson plans on energy in ecosystems?

Our lives depend on an interconnected web of interactions, although we may not always be aware of it. We need ecosystems for energy and oxygen, among many other things. Project Learning Tree's Energy in Ecosystems e-unit provides activities and resources to help students understand the interactions in ecosystems, with a specific focus on forest ecosystems.  

Hands-On Activities

Get students excited about science through hands-on activities, rather than simply memorizing facts.

Meets NGSS Standards

The e-units are constructed around targeted performance expectations of the Next Generation Science Standards (NGSS). 

Flexible Curriculum

Use activities as stand-alone investigations, or move through all the e-unit activities from beginning to end. 

The Energy in Ecosystems e-unit explores these essential questions: 

  •   What is an ecosystem?
  •   In what ways do living things interact in an ecosystem?
  •   How does energy flow through an ecosystem?
  •   What can individuals do to sustain ecosystems?  

This unit is designed as an introduction to ecosystems and some of the ways that organisms interact within ecosystems. 

Energy in Ecosystems cover

Each e-unit contains:

  •  Detailed step-by-step lesson plans
  •  Downloadable student pages to guide learning
  •  A range of assessment tools, including pre- and post-assessments and evaluation rubrics
  •  Easy-to-understand teacher background information
  •  Comprehensive, interactive connections to academic standards
  •  A self-paced online workshop with video demonstrations of the activities and lesson planning exercises
  •  Suggestions for fiction and non-fiction books to enhance the activities
  •  Links to websites, videos, and other supplementary resources 


Teachers who subscribe to an e-unit from Project Learning Tree will have access to quality learning activities anytime, anywhere.

What teachers are saying about Project Learning Tree's new curriculum

“I honestly found the unit resources to be among the most well-organized resources I have ever used.”

--Agnes Zellin

Teacher in New York

“It is easy to do, not a huge amount of preparation, and can be done even in an urban environment.”

--Laura Baker

Teacher in Indiana

“My students and I really enjoyed all the activities. It enhanced my classroom lessons and provided a lot of great interactions.” 

--Beth Horning 

Teacher in Pennsylvania 

Get instant access to the Energy in Ecosystems e-unit for grades 3-5