Trees Activities


Find tree-related activities to integrate into carts, demonstrations, classes and more.


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Tree Impact Study

Trees are among the oldest living organisms on Earth. Because of their size, complexity, and long life, trees provide a habitat, like an island, that rises far above the ground. Your goal in this study is to document the impact of a large tree on the environment of your school or community.

Tree Height Comparisons: A Hand-Held Clinometer vs. the NASA GLOBE Observer Trees Tool

Taking great measurements and observations of tree height is vital to the accuracy of the science, to the comparison of the data to that of ICESat-2 and GEDI, and to the understanding of local to global impacts of trees on the environment. The objective is to do a comparison of the tree height measurements using a hand-held paper clinometer versus the NASA GLOBE Observer Trees Tool for citizen science and to explain any differences between the two measurement methods.

Seeing Trees in 2D and 3D: A Demonstration of Forest Extent and Tree Height

This activity uses building bricks to explain the different ways that scientists study forests from space, and why it is important to have multiple types of data.

Observation Stations

Observation Stations are typically 2' concrete stickers, from which citizen scientists can take observations using the GLOBE Observer app. Observing from a station provides additional information that allows our team to study things like change over time or the accuracy of the app. Download the template file and check out the Facilitator's Guide for guidance on customizing and placing your stations.


Facilitator's Guide

Freeze/Thaw - The Breathing Boreal Forest

In this activity students play the role of coniferous trees. First they learn about seasonal freeze/thaw cycles and dormancy through a game of tag. Students then juggle complex environmental factors to try to survive a growing season in a changing climate. Connections between freeze/thaw cycles, photosynthesis and the global carbon cycle are explored.

Find Your Pace

Each participant discovers the length of her or his own individual pace (while one pace equals two steps) by taking ten paces three times and finding the average of those three trials. Then participants count paces to experience the distance of 50 meters.

Build a Clinometer

Simple Instructions for how to build a paper clinometer (an instrument used to measure angles) and use it to calculate the height of a tree.

Video demonstrating building and using a paper clinometer

More detailed instructions from the GLOBE Teacher's Guide