Separating a Mixture

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This activity was designed for blind learners, but all types of learners can explore means of physically separating a mixture using dissolving, filtration, and evaporation. Separating a sand/salt mixture is a common experiment in physical science class that requires almost no adaptation for learners with visual impairments. This activity also provides experience in popular laboratory techniques of dissolving, filtration, and evaporation. In this activity, the learner will use filters and funnels to separate sand and salt.

Quick Guide

Preparation Time:
10 to 30 minutes

Learning Time:
10 to 30 minutes

Estimated Materials Cost:
$1 - $5 per group of students

Age Range:
Ages 11 - 18

Resource Types:
Activity, Experiment/Lab Activity


Materials List (per group of students)

  • Trays
  • Containers of sand and salt mixture
  • Stirring rods or spoons
  • Funnel
  • Funnel stand
  • Filter paper
  • Containers to collect the water under the filter stand
  • Evaporation dishes
  • Heating unit (optional)


  • Physical Sciences
    • States of Matter
      • Solids
      • Liquids
      • Gases
      • Changes of Phase
  • The Nature of Science
    • The Scientific Process
      • Asking Questions
      • Formulating Explanations


To use this activity, learners need to:

  • touch

Learning styles supported:

  • Involves hands-on or lab activities


Components that are part of this resource:

Access Rights:

  • Free access



  • All rights reserved, Perkins School for the Blind,