Treemendous Benefit of Trees

International Year of Plant Health 2020 (video)

https://youtu.be/cmPAwiIK2BU

Tree Benefits Calculator

http://www.treebenefits.com/

How To Measure a Tree (Portland Trees website)

https://www.portlandoregon.gov/trees/article/424017

Monica Lewandowski, Powerpoint

WestFest2020 Trees

Healthy plants, healthy planet Activity Book

Free pdf download
http://www.fao.org/documents/card/en/c/ca9327en/

Publication (free access online for this article):

Forest Health Detectives by Tara L. Bal. The American Biology Teacher, 76(8):536-541 (2014). https://doi.org/10.1525/abt.2014.76.8.7

iNaturalist app - identify and learn about plants, animals, insects
 

More ideas:

Search for nature scavenger hunts to find many more ideas