Making soap bubbles

contributed by Ms. Geraldine Fsadni, teacher of Chemistry

Who doesn’t enjoy blowing soap bubbles? But have you ever wondered how a bubble is formed. A soap bubble is a thin film of soapy water trapping air inside it. The film actually comprises three layers resembling a sandwich. The layer of water is squished between soap layers.

Grade 5 students learnt about the science of bubbles, prepared soap solution and had fun blowing huge bubbles.

Anyone who would like to follow this infallible soap solution recipe, simply mix 1 tablespoon guar gum (available from local supermarkets) with 500ml dishwashing soap. Then mix in 5 litres of water followed by a tablespoon of baking powder. Enjoy blowing bubbles using string and looped wire.