Rubric Made Using:

RubiStar ( http://rubistar.4teachers.org )

CATEGORY

4-Proficient with Distinction

3-Proficient

2-Partially Proficient

1-Substantially Below Proficient

Successful Drop

Egg is fully intact. No cracks.

Egg may have a crack in it, no leaks.

Egg breaks and leaks out but most of it is intact.

Egg is completely shattered.

Lightest Weight

weight of structure (including the egg~50grams) does not exceed 150 grams. 0-150grams

Weight of structure and egg is between 151 g-200g

Weight of structure and egg is between 201g-250g.

Weight of structure and egg exceeds 251grams

Design

Student includes a labeled diagram and shows forces acting upon design.

Student includes a labeled diagram of their design.

Student includes a partially labeled diagram of their set up. Components of their design are not labeled or shows forces with arrows but no labels.

Student includes a drawing with no labels or many unlabeled elements

Explanation of Forces

All criteria from level 3 is included. Student clearly shows action/reaction forces from Newton's third law.

Student includes: 1) an accurate force diagram showing all forces acting upon the egg at time of release and time of hitting the ground. 2) a summary or explanation of the forces operating on the egg.

Student has included both level 3 criteria. Force diagram may have some errors and/or summary or are missing one of level 3 criteria

Student is missing either a force diagram, explanation or both of these.

Revise

Student has clear idea(s) how the design can be improved. Meets level 3 criteria. Student modifies original design and tests redesign.

Student has clear idea(s) how the design can be improved. Student explains one or two design modifications that they would make and has a rationale for each.

Student lists how design can be improved but does not explain why or explanation is not based on their experimental results.

Student does not explain how the design can be improved.