I.A.1.Why Doesn't a Small Animal Burrow in Sand Cave-in?
Part One: How Does Sand Take the Shock?

Team members __________________________________
Team Prediction: (How much sand is needed to prevent the facial tissue from breaking when force is applied?) __________________

Trial # 1 2 3 4
Length of paper towel roll (A)        
Length from top of roll to sand surface (B)        
Depth of sand (C) (A-B=C)        
Did the tissue break? Yes or no        
Trial # 1 2 3 4
Length of paper towel roll (A)        
Length from top of roll to sand surface (B)        
Depth of sand (C) (A-B=C)        
Did the tissue break? Yes or no        
Trial # 1 2 3 4
Length of paper towel roll (A)        
Length from top of roll to sand surface (B)        
Depth of sand (C) (A-B=C)        
Did the tissue break? Yes or no        



Compare your prediction with your results:

  1. How much sand did your class predict would be needed to prevent the tissue from breaking? ______________________
  2. How much sand was in the tube before the tissue finally broke?
I.A.1-part 1    part 2    student data sheet
A. Physical Properties of Sand     I.A.1     I.A.3
B. Animal Tracks in the Sand     I.B.1
C. Glossary     D. Questions for Student Evaluation