Leave No Trace Principles
Impacts on Nature
Outdoor Ethics Scenarios
Wildlife & Ecosystems
Human Impact Facts
100
This principle encourages visitors to minimize the impact of campsites, trails, and resting areas.



What is *Travel and Camp on Durable Surfaces*?



100

This often-overlooked natural item takes approximately 2-5 months to decompose.



What is a *banana peel*?



100

You find litter on the trail but don’t have enough room in your bag to carry it. What should you do?



What is *carry out what you can and come back for more later or notify park staff*?



100

Feeding animals in the wild can lead to this, as animals become dependent on human food.



What is *habituation*?



100

This amount of time it takes for plastic bottles to decompose, posing a lasting impact on nature.



What is *450 years*?



200

The principle that reminds us to take everything we bring in back out with us.



What is *Dispose of Waste Properly*?



200

Leaving this type of waste behind in the wild can disrupt local ecosystems and attract animals.



What is *food waste*?



200

Someone in your group wants to carve their initials into a tree. How do you respond?



What is *explain that carving damages trees and disrupts natural beauty*?



200

Trampling plants in a delicate area affects this layer, which prevents erosion and helps soil retain moisture.



What is *ground cover*?



200


The Leave No Trace principle of avoiding campfires is important because even a small spark can lead to this.





What is a *wildfire*?

300

This principle is about observing and enjoying wildlife without disturbing them.



What is *Respect Wildlife*?



300

Breaking branches or stepping on delicate plants can destroy these, which often take years to grow back.



What are *native plants and ground cover*?



300

You’re hiking and come across a pile of rocks arranged in a sculpture. What should you do?



What is *leave the sculpture as you found it*?



300

This term describes the natural home of plants and animals that can be easily disturbed by human actions.




What is *habitat*?

300

One of the primary goals of Leave No Trace is to protect this, which provides homes, food, and shelter for wildlife.



What is *habitat*?



400

This principle encourages us to enjoy natural areas as they are without taking natural souvenirs.



What is *Leave What You Find*?



400

This natural landscape feature is often disturbed by hikers and campers, leading to erosion and habitat loss.



What is *soil*?



400

You are camping and someone suggests burning food scraps in the fire. How would you address this?



What is *explain that burning food scraps attracts animals and leaves behind residue*?



400

Litter, especially plastics, harms this type of animal that might mistake it for food.



What is *wildlife or marine animals*?



400

Visitors are encouraged to stay on trails because wandering off can lead to this type of damage to ecosystems.



What is *erosion*?



500

This principle reminds us to be considerate of others in the outdoor environment.



What is *Be Considerate of Other Visitors*?



500

This term describes the lasting impact on an area from too much foot traffic.



What is *trail erosion*?



500

Your friend wants to feed a wild animal. How would you explain why that’s not a good idea?



What is *feeding animals disrupts their natural foraging habits and can make them dependent on humans*?



500

This term describes non-native plants that disrupt ecosystems and often thrive due to human disturbance.



What are *invasive species*?

500

Leaving food waste behind attracts these animals, which may become dependent and disrupt the local ecosystem.



What are *scavengers (like raccoons or bears)*?



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