RubricAIRubricAI
Science6-8 (Middle School)NGSS

Experiment Design Rubric

Assess student-designed experiments for question formulation, variable control, safety planning, and scientific thinking.

CriteriaExemplaryProficientDevelopingBeginning
Research Question

Formulates a focused, testable question that demonstrates deep curiosity.

Asks a clear, testable scientific question.

Question is present but too broad or not easily testable.

No clear research question identified.

Variable Control

Correctly identifies and plans to control all independent, dependent, and controlled variables.

Identifies most variables with a reasonable control plan.

Some variables identified but control plan is incomplete.

Does not identify or plan for variable control.

Safety & Materials

Comprehensive safety plan with detailed, realistic materials list.

Includes safety considerations and a complete materials list.

Safety plan is incomplete; materials list has gaps.

No safety considerations or materials list provided.

Scientific Reasoning

Demonstrates sophisticated understanding of the scientific method and explains expected outcomes.

Shows understanding of the scientific method steps.

Partial understanding of the scientific method.

Does not demonstrate understanding of the scientific method.