Thursday, April 19, 2007

Salmon Cycle Search Scavenger Hunt



The instructional use of scavenger hunts in the classroom provide an easy and fun learning activity as students search for answers about specific topics. I have chosen the Type B scavenger hunt, as I developed questions and provided a hyperlink to the website for the answers. This blog is for 3rd grade students.


Directions: Go to www.cityofseattle.net/salmon/cycle.htm. Read the text and answer the fill-in-the blank questions. Each question is worth 20 points, for a total of 100 points.
Salmon Cycle Search Scavenger Hunt

1. Once the fertilized eggs hatch and develop into alevins, where does their food come from? ___________________________________________________
2. What does the fry develop to remain camouflaged from predators? ___________________________________________________
3. What physical changes does the smolt undergo? ______________________________________________________________________________________________________
4. How many years will salmon spend in the ocean before returning to their natal stream? _________________________
5. How many times will most salmon spawn during their lifetime? ___________________________________________________


Answers:
1. A nutrient rich yolk sac attached to their undersides
2. Vertical bars called parr marks on their sides
3. Transformation from a brown color with stripes to a silvery color
4. 1 to 5 years
5. One