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Ranger Rick
Average Rating: 
Participant Age: 
7 to 12
Approximate Cost: 
Under $10
1 to 60 minutes
Date submitted: 
Physical Challenge: 
Study Avalanches
Avalanches are masses of snow that roar down steep slopes. You can learn more about them by making your own.
  • Piece of foam board
  • Glue
  • Aluminum foil
  • Small rocks
  • Sandpaper
  • Flour
  • Rolled oats
  • Sugar
  • Protractor
Step 1
Construct Your "Hillside"

Use your materials to divide your piece of foam board into four sections:

  • a slippery, "icy" part made of aluminum foil
  • a "cliff" section made of rocks glued on in a row
  • a section of "grasses" and "bushes" made of sandpaper
  • a stony part made of small, glued-on rocks
Step 2
Make It "Snow"

Put the board down flat and made it "snow" by sprinkling layers of: flour, sugar, and rolled oats on it, layer by layer.

Step 3
Tilt Board

Slowly tilted the board up and watched for any sliding of the "snow." Use a protractor to measure how steep the board was when the snow started to slide.

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