Activity 2.2 - Set of activities on diffusion, particles, and holes

To develop the concepts of particles moving, of particles in solution moving
To introduce diffusion and osmosis
To develop and apply mental models
To control variables
to be able to predict, observe and explain processes~

See worksheets 2.2a-2.2e

The activities can be carried out in a learning cycles in small groups. The teacher can decide whether there should be a particular sequence to the activities or a free combination. Station 1 focuses on diffusion which can be explain by the Brownian motion. Station 2 focuses on the permeability of polymer membranes. Stations 3 and 4 extend the concept of particles and holes to different sizes of particles and explain it through molecular models. Station 5 develops visual models for the invisible structures and processes.

See worksheets