The sunrise and sunset data for this week's Mystery Class report are here! Thanks to Mrs. Berger's students for collecting this information from points around the globe.
As you know, Journey North is about migration. Have you ever wondered why we are also tracking changes in daylight? Over the next months, all the animals you track and all the signs of spring you witness will be related to daylight in one way or another. We hope you'll discover the many connections. This would be a good time to look at the Seeing the Light Lesson from the Teacher's Manual.
We also hope you'll answer Challenge Question # 21 below!
First, try this:
1. Select one of the Journey North migratory species.
2. Find out where this animal fits in the food web. (What does this animal eat, i.e.what is its prey? What is it's prey's prey? What plants does the prey eat?, etc.) Go back through the food web until you reach the sun as the source of food energy for this system.
3. Draw a diagram of the food web.
4. Next, think about ways this food web changes during the seasons.
5. Now, see if you can answer Challenge Question # 21:
"How do seasonal changes in photoperiod affect your animal's food web?"
How to Respond to Journey North Challenge Question # 21:
1. Address an e-mail message to: jn-challenge@learner.org
2. In the Subject Line of the message write: Challenge Question # 21.
3. In the body of the message, give your school's name and location and
answer the question!
We'll share your ideas and those of other students in future reports. You can also see students'answers to Challenge Questions on Journey North's WWW site.
JOURNEY NORTH MYSTERY CLASSES
SUNRISE/SUNSET DATA
DATE: Monday, Feb.26th
MYSTERY CLASS... SUNRISE and SUNSET
# 1..........7:13 and 16:57
# 2..........6:46 and 17:57
# 3..........6:31 and 19:27
# 4..........6:25 and 17:51
# 5..........6:59 and 19:58
# 6..........8:21 and 18:56
# 7..........7:05 and 19:00
# 8..........7:05 and 20:06
# 9..........6:15 and 17:21
#10.........7:03 and 18:45
Mrs. Berger's 5th Grade Class Roslyn Public Schools Roslyn, New York
**Visit the East Hills School WEB SITE at http://www.dorsai.org/~jberger/
The Next Mystery Class Update Will be Posted on March 8, 1996
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