Million Whys Press logo
Million Whys PressToronto
← Book 24 videos

Book 24, Question 141 · Video

Why should you never go into an old well, mine, or tunnel?

Video · 1:48 · Crafty Clover explains, from A Million Whys Book 24

Old underground places can be dangerous. The walls and roof may be weak and could fall, the air may not have enough oxygen, and there may be hidden drops or water. They are often hard to get out of. Even experts go in only with training, equipment, and a plan.

Read the full answer →

What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why should you never go into an old well, mine, or tunnel?

The Big Idea

Old wells, mines, and tunnels can look exciting. But they are very dangerous places! Let's learn why to stay away.

Weak Walls

Step one: Weak Walls. Old underground places can be dangerous. The walls and roof may be weak and could fall.

Bad Air

Step two: Bad Air. The air may not have enough oxygen to breathe. There may also be hidden drops or water, and they are often hard to get out of.

Stay Back

Step three: Stay Back. Even experts go in only with training, equipment, and a plan. If you find an old hole, stay back and tell a grown-up.

A Closer Look

Let's take a closer look! Roofs can fall. Air can be unsafe. Drops can be hidden. Water can be deep.

Quick Facts

Quick facts! Many old mines have been sealed with gates for safety. Only trained experts with equipment go inside. Always tell a grown-up if you find an old hole. Always obey warning signs.

Think Like a Scientist

Now, think like a scientist! Make a safety sign for a hidden hole. What words would warn people best? Add a picture that anyone can understand. Use bright colors. Share your sign with your family.

Outro

Never go into an old well, mine, or tunnel, because walls can fall, the air may lack oxygen, and there may be hidden drops or water. Stay back and tell a grown-up. Science is amazing! What will you discover next? Every question is a new adventure, so keep wondering and keep exploring with me! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!

Why I wrote this