Student Guides

This model is designed to allow for guided inquiry. Each guide linked below includes the diffusion model along with guidance on how to interact with the model. The goal of these guided inquiries is to discover various properties and behaviors of particles.

You can download text or pdf versions of the guides:

Image of the model including the various controls used to change settings.

Understanding the Model

Use this guide to allow students to become familiar with the model & to see what they can discover about the nature of particles.

Understanding the Model Guide
Image of model display with dots of two different colors representing particles spread out somewhat evenly.

Observing Diffusion

Use this guide to allow students to discover how diffusion works at the particulate level.

Diffusion Guide
Image of the model display showing particle path lines.

Observing Temperature Changes

Use this guide to allow students to discover how temperature affects particle movement and the process of diffusion.

Temperature Changes Guide
Image of the model display with a barrier with one slit.

Effusion

Use this guide to allow students to discover how barriers affect particle movement and behavior.

Effusion Guide
Image of the model display with particle direction and paths shown and a barrier with three slits.

Exploration & Experiment Design

Explore the model further and create your own experiment.

Exploration & Experiment Guide

Diffusion & Effusion Simulator

Click here to open the simulation in its own tab.