Leaves that fall into streams form natural leaf packs that provide food for aquatic organisms.
Participants create artificial leaf packs and place them in a stream for three to four weeks.
The leaf packs are retrieved from the stream and examined in the classroom...
...leading to the discovery of aquatic macroinvertebrates that indicate stream health.
Schools enter their data into the online Leaf Pack database to share with the public.
LPN experiments teach the importance of streamside forests and promote their stewardship.
The Leaf Pack Network® (LPN) is a network of teachers and students investigating their local stream ecosystems.
Leaf Pack Experiment Kit, participants:
- Create an artificial leaf pack and place it in a stream for three to four weeks.
- Collect and examine the packs in the classroom.
- Discover aquatic insects that indicate stream health,
showing the connection between trees and streams.
- Share data through the network.
Interested in connecting your classroom to the outdoors?
Here’s how to get started!
Leaf Pack Kits Connect Students with Nature
A partnership between Stroud Water Research Center and National Wildlife Federation (NWF) is helping more students and teachers connect with nature and investigate their local stream ecosystems using the
Leaf Pack Experiment Stream Ecology Kit. Learn more »
Attention Leaf Pack Network® Participants
We are updating our method of communicating with the Leaf Pack Network®.
In order to receive the latest LPN news and updates, we need you to subscribe to our list. You can expect to hear from us just
a few times a year.
Jump Into These Links!
Anyone interested in learning about riparian communities can use the resources available on the Leaf Pack Network®. Navigate the LPN website using the menu on the left, or start with these pages:
View data from a particular stream. Search by major watershed
Visit our learning center to learn about watersheds,
the link between trees and streams,
macroinvertebrates, or data analysis.
interesting resources from Stroud Water Research Center and other organizations that provide information about rivers and streams.
a detailed look at the Leaf Pack Network,
view our eight minute video.