Part 3: Measuring and Graphing Tree-Ring Width at Chaco Canyon, NM. part of TREX - Tree Ring Expeditions:TREX for Students:Labs
In addition to calendar dating ancient archeological sites, and more recent antiques and musical instruments like violins, tree rings capture a wealth of information regarding past temperature and precipitation in ...

Part 3 - Gathering Historical Drought Data part of TREX - Tree Ring Expeditions:TREX for Students:Labs
Download a Student Activity Worksheet here. (Microsoft Word 2007 (.docx) 24kB Feb24 22) Although it may seem a simple matter to measure and analyze tree rings, there are several natural conditions and factors that ...

Lab 1 - Launching an Expedition part of TREX - Tree Ring Expeditions:TREX for Students:Labs
Download a Student Activity Worksheet here. (Acrobat (PDF) 216kB Mar13 19) Introduction Dendrochronologists often travel to remote regions across the world in search of old, slow growing, trees that capture the ...

Part 2 - Coring Trees and Observing Ring Patterns part of TREX - Tree Ring Expeditions:TREX for Students:Labs
Now that you have considered the nature of your research site, and how environmental conditions affect tree ring growth, it's time to roll up your sleeves and get to work! Trees typically grow one ring per ...

Part 2 - The Life of a Tree-Ring Scientist part of TREX - Tree Ring Expeditions:TREX for Students:Labs
Each scientist working today was influenced and inspired in some way to enter their profession and commit to a life-long quest to advance our knowledge of the universe. Some had a parent or relative, teacher, or ...

Lab 4 - Sharing a River: The Colorado River Story part of TREX - Tree Ring Expeditions:TREX for Students:Labs
Download a Student Activity Worksheet here. (Microsoft Word 2007 (.docx) 68kB Mar14 19) Introduction All of us take water for granted because we can just turn on a tap and use as much as we want. This is not true ...

Lab 3 - Tree Rings and the Ancestral People of Pueblo Bonito: Uncovering the Past part of TREX - Tree Ring Expeditions:TREX for Students:Labs
Download a Student Activity Worksheet here. (Microsoft Word 2007 (.docx) 64kB Mar14 19) Introduction In this tree-ring science expedition you will learn how tree rings are used to date archaeological sites. You ...

Lab 2 - Humpty Dumpty and Drought in the Hudson Valley, NY part of TREX - Tree Ring Expeditions:TREX for Students:Labs
Download a Student Activity Worksheet here. (Microsoft Word 2007 (.docx) 24kB Feb24 22) Introduction This tree-ring science expedition takes you to a fascinating landscape in New York State. The Shawangunk Ridge, ...

Part 1: Straws in the Colorado River: Will We Run Out of Water? part of TREX - Tree Ring Expeditions:TREX for Students:Labs
To begin your tree-ring science expedition to the Colorado River Basin, you will investigate its physical characteristics and learn how the water is used and apportioned by those who live there. The river ...

Part 3: Explore the Colorado River Basin part of TREX - Tree Ring Expeditions:TREX for Students:Labs
Note: This work is under development but has been released temporarily for classroom testing purposes. Look for the full series of TREX (Tree Ring Expeditions) labs in the fall of 2017. Have you been in a drought? ...