1st Period | Magnetic Force_ Why do speakers levitate?

What's in the speaker? ··· 12
Where are the magnets most concentrated? ··· 16
What's the secret behind the levitating speaker? ··· 19
Spiral Love's Organizing Notes... 24
Find the Science Quiz Master! ··· 25
Mr. Yong's Science Cafe... 26
- If you split a magnet in half, how many poles will it have?

2nd Period | Compass_ How to find direction with a compass?

The Compass Principle! ··· 31
Why does the North Pole always point north? ··· 34
Make a compass out of hairpins! ··· 37
Na Seon-ae's Organizing Notes... 40
Find the Science Quiz Master! ··· 41
Mr. Yong's Science Cafe... 42
- Why the Earth's magnetic field is important!

3rd Period | Current and Magnetic Fields_Why does the compass needle suddenly move?

Secrets of Subway Stations... 46
What is the shape of the magnetic field around a wire? ··· 50
Finding the Direction of a Magnetic Field with Your Right Hand! ··· 53
Na Seon-ae's Organizing Notes... 56
Find the Science Quiz Master! ··· 57

4th Period | Electromagnet_ How to easily move a heavy iron plate?

What about the magnet that sticks and falls? ··· 61
Electromagnets vs. Permanent Magnets... 65
Making an Electromagnet! ··· 70
Na Seon-ae's Organizing Notes... 72
Find the Science Quiz Master! ··· 73
Mr. Yong's Science Cafe... 74
- The shapes of magnetic fields revealed by iron filings

5th Period | Electric Motor_Why are there magnets in earphones?

The foil moves on its own! ··· 79
What Happens Inside Your Earphones? ··· 83
How does a power drill work? ··· 85
Na Seon-ae's Organizing Notes... 88
Find the Science Quiz Master! ··· 89

6th Period | Electromagnetic Induction - How can a light turn on without a battery?

How to Generate Electricity with Magnets? ··· 93
Just shake it and the lights turn on! ··· 97
How is electricity produced? ··· 101
Na Seon-ae's Organizing Notes... 106
Find the Science Quiz Master! ··· 107
Mr. Yong's Science Cafe... 108
- Is electromagnetic induction used this much?

Crossword Quiz... 110
Into the Textbook... 112
Search ··· 114
Quiz Answers... 115

『Mr. Yong's Bustling Science Classroom』 Volume 18
From tiny earphones to the vast Earth, there's no place without magnets, right?

Magnets are hidden all around us.
There is no place where magnets are absent, from the buttons that open and close bags, to the earphones that you put in your ears to listen to music, to the bottle opener that you attach to your refrigerator, to even household appliances like fans, vacuum cleaners, and washing machines.
And that's not all.
Magnets are also very important in industrial settings, such as cranes that move heavy iron and generators that generate electricity.
In the ‘Magnet’ section, we learn about the properties and uses of magnets, which are widely used in our daily lives.
Why do paperclips stick to magnets but erasers don't? Why does a compass needle point north and south? Why does it wobble when a subway train pulls into a station? Wait! Can you create a magnet with an electric circuit? Can you even use magnets to generate electricity? This book uses a levitating speaker to pique readers' curiosity and guide them into a world of magnetism.
It provides a variety of experimental scenes, such as making a compass with a hairpin and an electromagnet with a nail, and shows how widely magnets are used in our lives through abundant examples, such as a shiny, glowing kickboard and a power plant that turns a giant turbine to generate electricity.
Once you understand the nature of the magnets that surround us, from tiny magnets to the vastness of our planet, your perspective on the world will grow in wonder and your curiosity about science will grow dramatically.

If you read it with interest and enjoyment, you will soon find that scientific knowledge has entered your head!

Considering the reading level of children today, who are familiar with visual media but lack basic reading comprehension skills, the content was delivered in the easiest language possible at children's eye level.
The friendly narrative style, consisting of dialogue between characters, makes it easy for even children who are not accustomed to reading short stories.
We've also optimized the structure to make it easy to read and understand accurately by utilizing various visual aids.

Satisfy your curiosity in real life and develop your scientific thinking skills!

It provides a framework for viewing not only simple scientific concepts but also phenomena and problems through a scientific lens.
This book, which draws scientific curiosity from real-life materials and approaches concepts and principles, resonates with children and naturally draws them into the book.
Readers can not only satisfy their scientific curiosity and gain knowledge, but also develop scientific thinking and attitudes.

A colorful visual composition that catches the eye!

It delivers content intuitively through a variety of visual aids, including vivid and realistic photos, clear illustrations, and humorous characters.
Additionally, we've designed the book to reduce the burden of learning and make science an enjoyable subject by summarizing the key content of each unit through 4-panel cartoons.

A new standard for elementary science based on the latest science textbooks from 2020!

It faithfully reflects the contents of the most recently revised elementary and middle school textbooks.
Each volume, organized by topic, covers elementary school subjects as well as concepts learned in middle school, tailored to the elementary school level.
Additionally, we have further enhanced the curriculum connectivity by reflecting the scientific terminology used in the revised textbooks.

A book painstakingly developed by trusted science education experts!

This book was painstakingly created by science education experts who have long studied science at universities and taught children directly in the field, participating in the entire development process from planning to editing.
To convey accurate scientific concepts at an elementary school level, we studied elementary, middle, and high school textbooks as well as various domestic and international specialized materials to develop fresh materials and explanation methods that are suitable for children's level.
Additionally, the series' reliability has been enhanced by repeatedly ensuring the accuracy of its content through review by authoritative professors who teach science at education universities.