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S1 - E1 | The Mysterious Tunnel

How are underground tunnels built?

On the road to knowledge with music for 3 to 6 year olds!

Today, we are going to explore underground tunnels.

Pictures of our little adventurers in action - can you come and play with them?

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This first melody will take you on a musical discovery of the world!

🎤 Move, sing, discover!

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The lyrics of the two songs are identical, only the melodies are different.

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

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📝 Quick summary of key information

How are underground tunnels built?

A tunnel is an underground path that lets you go through mountains or cities without going on the surface. It's like a long secret hallway under the ground.

To build a tunnel, engineers start by drawing very precise plans. Then, special machines like drills and excavators dig the earth.

While digging, it is very important to support the tunnel walls with wooden or metal braces to prevent cave-ins. This keeps the tunnel strong and safe.

Geologists, who are scientists that study rocks, explore the earth to help find the best places to dig and understand the geological history of the area.

LesExplorateursdesProfondeursHerosduSousTerrain_saison_1_episode_1_LeTunnelMysterieux_clean_story.jpg

The Mysterious Tunnel

How are underground tunnels built?

The Adventure in the Mystery Tunnel

After finding a mysterious map leading to a tunnel under construction(1), Stephane, a brave engineer(2) who loves underground challenges, and Nela, an adventurous geologist(3), are on a new adventure. As they explore the depths, they find clues about old rocks, getting them ready for a new geological adventure. Today, they are in the Mystery Tunnel, ready to discover the secrets of its construction.

Stephane, amazed, says:
« Nela, look at the rocky walls. »

Nela, fascinated, explains:
« The layers of rocks tell the story of the area. »

Stephane, while looking at the walls, explains: « Engineers use drills(4) and controlled explosives. »

Nela, her eyes sparkling with excitement, exclaims: « These layers show the different geological ages of the area. You can see layers of sediment(5) that have built up over thousands of years(6). It's fascinating! »

Stephane, while looking at the rocky walls, says:
« Look, Nela, these layers show us very old times. But be careful, the tunnels can be slippery! »

By looking at the rocks, they find clues about the history of the area. This helps them understand better how tunnels are built.

The geological secrets of the tunnel

After finding clues about the region's geological history, Stephane, with his clever ideas, and Nela focus on making the tunnel safe(7). They know their work is very important to prevent cave-ins.

Stephane, after looking at the rocks, says:
« Stephane, we need to strengthen the walls. »

Nela, after looking at the walls, suggests:
« Yes, let's use metal pillars. »

Stephane, thinking out loud, says:
« And safety nets. »

Nela, after looking at the tunnel walls, says:
« That's a good idea. »

Stephane and Nela explore a tunnel under construction together. They find old rocks and amazing rock shapes. By looking at the rocks, they find clues about the area's history, which helps them understand how tunnels are built.

After exploring the geological mysteries of the tunnel, a new adventure awaits Stephane and Nela. Curious about their discoveries in the tunnel, they decide to venture deep into an underground mine. There, they find fascinating information about lithium, a mineral essential for powering the batteries in our electronic devices. They will learn why lithium is so important for modern technology and how it is mined. With their endless curiosity, Stephane and Nela are ready to uncover the secrets of the lithium mine and tackle the challenges that lie ahead.

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