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Soap Bubbles – A scientific activity about bubbles and surface tension

From 01 hanuary 2026 to 01 hanuary 2027
A young child participates in a science workshop about soap bubbles with an instructor wearing a white lab coat. The child manipulates a large frame to create a huge soap bubble. The title "Soap Bubbles - Animation" appears.
Soap Bubbles – Animation

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Discover Soap Bubbles, a fun and interactive science activity offered by Cap Sciences and produced by Récréasciences – Limoges, specially designed to spark the curiosity of children aged 3 to 6. Through a series of simple, fun, and spectacular experiments, young children explore the fascinating world of soap, water, foam, and bubbles while discovering the fundamental principles of physics and chemistry.

Who hasn't blown into a ring to make a soap bubble appear? Behind this seemingly simple gesture lie genuine scientific phenomena. During this one-hour workshop, children become little researchers and experience firsthand the amazing properties of soap through an approach based on manipulation, observation, and play.

The activity begins with a discovery of foam. Participants learn how it is formed through the combination of soap and air, then experiment themselves by blowing into their own cup to understand the role of each of the elements necessary for its production.

The experiments continued with a surprising phenomenon involving pepper floating on the surface of water. By adding a single drop of soap, the children watched as the pepper instantly floated away. This spectacular experiment provided a very accessible introduction to the concept of surface tension, a fundamental physical phenomenon that also explains the formation of soap bubbles.

The workshop then invites young participants to unleash their creativity through an experiment combining milk and soap. The colors move, blend, and create beautiful patterns in motion, illustrating the surfactant properties of soap while offering a moment that is both artistic and scientific.

Next comes the time for bubbles in all their forms. The children try to make the biggest, the roundest, the most ephemeral, or even the most original bubble. They observe how their size varies, how they deform, merge, or burst, while discovering that their apparent fragility hides a particularly complex physical balance.

The highlight of the activity is undoubtedly the final experiment, during which each child creates a real giant bubble. This spectacular activity allows everyone to have a memorable sensory experience while putting into practice the concepts learned throughout the workshop.

Through hands-on experience, children learn to blow accurately, observe carefully, touch, manipulate, and experiment on their own. They discover the differences between foam, liquid, solid, and gas, understand the role of soap in bubble formation, and are encouraged to discuss its importance in our daily lives. The workshop also explains in simple terms how soap's properties contribute to its effectiveness against viruses, thus providing a first scientific introduction to hygiene adapted for young children.

This activity is based on active learning, where each participant becomes an active contributor to their discoveries. Numerous hands-on activities are involved, observations are encouraged, and children are invited to formulate their own hypotheses before discovering the scientific explanations. This approach fosters curiosity, independence, language development, and the acquisition of basic experimental skills.

Designed for both preschools and families, the workshop accommodates up to 15 participants per session and requires an indoor space of approximately 30 m², supplemented by a clear outdoor area for certain activities. Setup is quick, taking about 30 minutes. The organizer simply needs to provide a nearby water source, tables and chairs, and clothing covers for participants. An on-site assistant is also required to ensure the smooth running of the activity.

Produced by Récréasciences – Limoges and distributed by Cap Sciences, this animation is fully aligned with a science outreach approach accessible to young children. It demonstrates that with a few everyday ingredients like water and soap, it's possible to discover amazing scientific phenomena while having fun. Thanks to a subtle balance of experiments, hands-on activities, observation, and wonder, "Soap Bubbles" transforms a simple children's game into a true scientific adventure where everyone leaves with new knowledge… and a smile on their face.
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