Lesson Plan: Colloids and Suspensions Chemistry
This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to describe suspensions and colloids and explain their properties.
Objectives
Students will be able to
- describe a suspension and a colloidal system and explain the difference between them,
- describe and explain thixotropic mixtures,
- describe the components of a colloid (dispersion medium and dispersed particles) and give examples for different types of colloids,
- explain the stability of colloids through intermolecular interactions and describe how this stability can be disrupted,
- explain the Tyndall effect and use it to distinguish between a colloid and a solution,
- outline simple methods for preparing colloids and provide examples.
Prerequisites
Students should already be familiar with
- mixtures and solutions,
- polarity.
Exclusions
Students will not cover
- quantitative descriptions of the formation, physical properties, or interaction of colloidal particles.