Chemistry - Particle Theory: Diffusion

In this MEL Academy lesson your children will:

• learn the science behind diffusion
• perform chromatography analysis
• obtain beautiful chemical reefs

Lesson time

11:00am	PST	(San Francisco, Seattle, ...)
12:00pm	MST	(Phoenix, Denver, ...)
1:00pm	CST	(Chicago, Houston, ...)
2:00pm	EST	(New York, Toronto, ...)
7:00pm	GMT	(London, ...)

Lesson duration: 45-55 minutes.

Prepare in advance

In this lesson, we will conduct several DIY experiments. Prepare in advance household materials shown below.

  colourful (e.g. fruit) tea bags
  access to water (cold and hot)
  2 x transparent plastic cups
  skittles/M&M’s
  glass bowl
  felt-tip pens or highlighters (not sharpies)
  5x sheet of paper towel or coffee filter paper
  3x tall glass
  scissors
  4x white round chalk (optional)
  plate (optional)
  rubbing alcohol (optional)

Worksheet

Please, download and print this worksheet in advance. You’ll need to refer to it during the lesson.

MEL Experiment

If you are a subscriber of MEL Chemistry then you can conduct Chemical reefs experiment from the Diffusion chemistry set:

Tutor

This lesson is presented by Daniel Sullivan:

Daniel Sullivan is a hugely enthusiastic and experienced ex-head of science with over 20 years of teaching experience. He is now running a science teacher training company and is looking forward to engaging with students once again.