Separation of Mixtures: Properties in Matter

Author: E.Y.Siu and B.L.Fireng

Area: Life Sciences

Grade Level:


In developing sensing devices, a selective medium is usually employed to collect the compound(s) of interest and ease detection.  To achieve selectivity, compound(s) of interest must be differentiated from other contaminants.  One differentiation mechanism is to make use of the physical properties of the mixture.

In the following lesson, students will observe separation of mixtures.  Separation will occur based upon differences in physical properties.  Two different mixtures are proposed for variation in the depth of content coverage desired and the materials available.

The proposed lesson plan addresses the physical science strands and is intended for 8th grade.

Arizona Grade 8          Strand 5:  Physical Science                   Concept 1:  Properties and Change of Properties in MatterPO 1.  Identify different kinds of matter based on the following physical properties:·         States·         Boiling point·         SolubilityPO 5.  Classify mixtures as being homogenous or heterogeneous

PO 7.  Investigate how the transfer of energy can affect the physical and chemical properties of matter

Keywords: Physical property, mixtures, boiling point, states, solubility, transfer of energy

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Lesson Plan (pdf / doc)
 Overview (pdf / doc)
LessonPlan_Final (pdf / doc)