Overview
Students will review charts of day length to determine when the sun will set at Toolik Lake.
Objective
Students will learn the following:
- The sun is the major source of energy for phenomena on the earth's surface, such as growth of plants, winds, ocean currents, and the water cycle.
- Seasons result from variations in the amount of the sun's energy hitting the surface, due to the tilt of the earth's rotation on its axis and the length of the day.
Activity Preparation
Make copies of the attached document. Students/teachers need computer(s) with Internet access.
Description
Hand out document to students. Introduce concept of looking at pattern of daylight and darkness to predict when the sun will set for the first time after months of constant daylight at Toolik Lake, Alaska. After students predict, visit the website http://www.gaisma.com to find local charts. Teachers can use the website for students to compare the latitude and length of daylight/darkness at various locations.
Resources
www.Gaisma.com
Credits
Submitted by Cathy Campbell, a2sciteach [at] aol.com Permission received from website publisher, in addition fair usage is allowed under disclaimer section of website.
Attachment | Size |
---|---|
Download Lesson (PDF - 351 KB)351.4 KB | 351.4 KB |