Lesson Plan: Colloids and Suspensions Chemistry • First Year of Secondary School

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.