Name________________________________________
Period_________
Skeleton System Function: Protection
Egg Demonstration: Your teacher will place an egg into two student groups’ bags. One of the
water bags containing an egg will be placed into a closed container for protection (Styrofoam
cup with plastic lid). The other water bag containing an egg will remain unprotected. Predict
what will happen if both bags are dropped onto a hard surface from an identical height. Write
or draw your prediction in the left column (prediction) of the boxes labeled “Protected and
“Unprotected”.
Egg in Protected Bagwhat is looks like after dropped
Prediction
Actual
Egg in Unprotected Bagwhat is looks like after dropped
Prediction
Actual
Volunteers will now drop the protected an unprotected bags from an identical height. Write or
draw what happened to each in the right column (actual) of the boxes labeled “Protected and
“Unprotected”.
1. If each of these bags with eggs represented the internal organs in an organism and the cup
represented a skeleton, which organism would have better protection for its internal organs?
___________________________How do you know?___________________________________
2. In the human body, what part(s) of your body is (are) protected with the skeleton?
 The skull protects the ____________________________________.
 The ribs protects the _____________________ and ______________________.
 The vertebrae (spine) protects the ______________________ __________________.
Name________________________________________
Period_________