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 Article:
Are you Red-dy to Change? Learning What Things Affect Leaf Color ChangeThis article is from Issue Northern States Edition - Vol. 1 No. 1.
* Note: All editions of the Natural Inquirer starting with Volume 5 and including future editions require the newest version of Adobe Acrobat Reader 6.0 in order to be downloaded. We have upgraded in order to ensure greater accessibility to PDF files. Please click on the following link if you need to upgrade your Adobe Acrobat reader: Upgrade now to Adobe Reader 6.0. It is a free upgrade. Meet the scientists that contributed to this article:"Science Topics" covered in this article:
"Environmental Topics" covered in this article:
Regions covered in this article:
"Thinking About Science Themes" covered in this article: Scientists learn things through observation. Observation is carefully examining something to understand it better. Sometimes scientists observe plants to learn about them. In this study scientists observed leaves. They observed leaves on deciduous (de sij oo us) trees. These trees lose their leaves in the fall or winter (figure 1a and 1b). The scientists observed the change in leaf color. They did this because they wanted to know why and when leaves change color. Have you ever gone to the mountains to see the leaves change color? If so, you are not alone. Many people go to the mountains to see the leaves change color in the fall. Scientists knew that if they can predict when leaves will change color, this information will help people plan their trips. You can see that science helps people in many ways. In this case, it can help people to enjoy the leaf color change in the fall. Science also helps people in other ways. You will learn about one of those other ways by reading “Thinking About the Environment” section. Specific "Thinking About Science" Themes:"Thinking About Environmental Themes" covered in this article: A change in leaf color can tell us important things about trees (figure 2). Think about a plant in your house. Have you ever seen the leaves change color? What happens when the leaves change colors? Leaf color change could be a sign of trouble. Leaves may change color because of sickness or stress. Imagine that some tree leaves change color in June. What do you think this means? It is probably a sign that the tree is unhealthy. Understanding leaf color change can help scientists understand a tree’s health. Specific "Thinking About the Environment" Themes:Forest Service Stations covered in this article:
NSE Standards covered in this article:
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