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Mixture Dualism of Blood
| Content Provider | TeachEngineering: STEM curriculum for K-12 |
|---|---|
| Author | Rajasekaran, Renuka |
| Copyright Year | 2015 |
| Description | Students learn about the separation techniques of sedimentation and centrifugation and investigate whether blood is a homogeneous or a heterogeneous mixture. Working in groups as if they are biomedical researchers, they employ the scientific method and make observations about the known characteristics of urine, milk and blood. Students learn about the separation techniques of sedimentation and centrifugation and investigate whether blood is a homogeneous or a heterogeneous mixture. Working in groups as if they are biomedical researchers, they employ the scientific method and make observations about the known characteristics of urine, milk and blood. They probe further by analyzing research on the properties and fractionation modes of blood. As students learn about certain strange characteristics with the fractionation behavior of blood, they formulate hypotheses on the unique nature of blood. Using provided materials —olive oil, tomato juice and petroleum jelly—they design an experiment and construct a blood model. They test their hypotheses by conducting experiments on the blood model, and then propose theories for the nature of blood as a mixture—arriving at the theory of mixture dualism in blood—that blood is a complex mixture system. An activity-guiding handout and PowerPoint® presentation are provided for this student-directed, project-based activity. |
| Language | English |
| Access Restriction | Open |
| Rights Holder | Regents of The University of Colorado Georgia Institute of Technology |
| Subject Keyword | Chemistry Physical Science Physics Science and Technology Erythrocyte Sedimentation Homogeneous Mixture Homogeneously Heterogeneous Mixture Mixture Type Heterogeneously Homogeneous Mixture Blood Buffy Coat Separation Heterogeneous Sedimentation Bioengineering Centrifugation Heterogeneous Mixture Homogeneous Esr Test Mixture Separation Centrifuge Mixture Dualism Model Blood Biomolecular Engineering |
| Content Type | Text |
| Time Required | PT3H |
| Education Level | Class X Class XI Class XII |
| Pedagogy | Experimental Activity |
| Resource Type | Hands-on |
| Subject | Physics Chemistry Technical |
