iRubric: Mystery Mixture rubric

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Mystery Mixture Students conduct soil tests on an unfamiliar mixture and compare their test results with those from previous tests on sand, clay, and humus. Students describe properties of the new mixture and using their data, students infer which soil components their mixture contains. Rubric Code: Y32W64 By Mrs_Shwartz Draft Public Rubric Subject: Science Type: (Other) Grade Levels: K-5

Mystery Mixture
	Outstanding 5 pts	Meets Goal 3 pts	Poor 1 pts
Conducting experiments	Outstanding Student independently follows plan and successfully competes experiments.	Meets Goal Student follows plan and successfully completes experiments. Minimal teacher assistance required.	Poor Student in unable to follow plan and requires extensive teacher support.
Use of materials	Outstanding Student uses materials independently and appropriately for the purpose of the experiments.	Meets Goal Student uses materials appropriately for the purpose of the experiments. Minimal teacher assistance required.	Poor Student requires significant teacher support to use materials for the purpose of the experiments.
Identifies properties of soil	Outstanding Student correctly identifies the characteristics of the soil components in 5 experiments.	Meets Goal Student correctly identifies the characteristics of the soil components in 3 experiments.	Poor Student correctly identifies the characteristics of the soil components in 1 experiment.
Analysis of mixture	Outstanding Student correctly analyzes mixture based on experiment results and can explain the proportions of the components that make up the mixture. Analysis is based on all 5 tests.	Meets Goal Student correctly identifies the components of the mixture based on the experiment results. Analysis is based on 3 tests.	Poor Student cannot identify the components of the mixture based on experiment results.