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Today, we are going on a journey to discover Radioactivity.

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The adventure begins with a story and discoveries for 6 - 8 year olds!

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📝 Quick summary of key information

How can we see something invisible like radioactivity?

Radioactivity is invisible energy that is in some things. It is like an invisible wind that can go through walls and objects. You can't see it, but it is all around us, even in the stars.

Why do we say that radioactivity is invisible? Because we can't see it with our eyes. It is too small and too fast to be seen. Imagine trying to see the wind, it's the same with radioactivity.

To detect radioactivity, we use special tools. These tools can be plates or glowing screens. When radioactivity touches these tools, they glow or change color. This helps us know that it is there.

Some powders, like those used in hospitals, can glow when they are touched by radioactivity. It's like radioactivity turns on a little light in these powders, letting us see it.

The First Glows of Radioactivity

How can we see something invisible like radioactivity?

The Glowing Room

After discovering a mysterious door at the back of a museum, Zoé and Tom find themselves in an old, sparkling laboratory full of mystery. Shelves filled with colorful bottles and strange-shaped machines surround them, while a soft glow lights up every corner. A scientist greets them with a kind smile. She tells them they are now her young helpers‎ (1) and they will discover the secrets of radioactivity‎ (2) together. Zoé, with her too-long white coat, lab gloves, and always-open notebook, and Tom, with his magnifying glass, safety goggles, and stained apron, are ready to dive into this fascinating world.

Marie Curie, with a mysterious smile, invites:
« Follow me to the Radiation Room. »

Tom, curious, asks:
« Where is it? »

Marie Curie, with a reassuring smile, says:
« It's this way. »

Not long after, Marie Curie takes Zoé and Tom to the Radiation Room. Once the door is closed, darkness fills the room. Powders glow softly in the darkness. Zoé and Tom watch carefully.

Marie Curie, curious, starts to explain:
« Radioactivity is invisible energy. It can make some powders glow. »

Tom, curious about the glowing powders, asks:
« Can we see it? »

Marie Curie, with a focused look, explains: « Look closely at these powders. See how they glow? It's called radioluminescence‎ (3) that makes them shine. It's an invisible energy, but it can make some things glow. »

By looking closely, they understand that this light comes from a secret phenomenon: radioactivity. A first clue towards a big discovery.

Tools of Discovery

After watching the glowing‎ (4) powders, Marie Curie decides to show them how to detect radioactivity with special tools. She shows them glowing plates and sensitive‎ (5) screens‎ (6).

Marie Curie, with a focused look, says:
« These tools are very sensitive. You must handle them carefully. »

Tom, curious, asks then:
« How do we use these plates? »

Marie Curie, with a soft and clear voice, tells them:
« Put them near the bottles. Watch carefully what happens. »

Zoé, amazed, says:
« I write down everything I see. It's fascinating! »

After observing the rays in the Ray Room, Zoé and Tom are amazed by the mysteries of radioactivity. They wonder how to remember all these incredible discoveries. Zoé starts writing down everything she sees: bottles, powders, sparks… Tom invents symbols for each thing they observe. Together, they create a magic notebook where each page tells a new scientific adventure. Marie Curie praises them for their curiosity and precision. She tells them they have taken a big step into the world of science. Zoé and Tom, with their eyes shining with curiosity, promise to keep exploring and discovering. They then head to the Garden of Noble Ideas, where new adventures await them.

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