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Study Avalanches

Avalanches are masses of snow that roar down steep slopes. You can learn more about them by making your own.

Ranger Rick
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Average Rating:
Participant Age: 7 to 12
Approximate Cost: Under $10
Duration: 1 to 60 minutes
Difficulty:
Physical Challenge:
  • Piece of foam board
  • Glue
  • Aluminum foil
  • Small rocks
  • Sandpaper
  • Flour
  • Rolled oats
  • Sugar
  • Protractor
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

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.

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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