You can grasp middle school science concepts with just one read.
Science Teacher K's Interesting and Fun Science Class

The importance of integrated science has increased with the 2028 college entrance exam reform.
As the college entrance system is being reformed, it is important to lay a solid foundation during middle school to prepare for integrated science in middle and high school grades and college entrance exams, as it will be reflected in the college entrance exam regardless of whether it is humanities or science.
"How can I quickly improve my science grades?" To excel in advanced science subjects, you need to first grasp the concepts.
This book explains essential terms for middle school science and applies them to various situations.
If science feels difficult, you can learn scientific concepts in a fun way with this book.


The author, a current middle school teacher, runs the YouTube channel [Science Teacher K] and produces and shares videos suitable for middle school science classes.
The author states that he "structured the book to inspire students to love science, be curious, and explore the world." Let's experience the engaging lessons of Science Teacher K, featured in the EBS documentary [Educational Project: Korea, Education is Hope] as "a science class more fun than a game."

Now you should be able to express scientific terms in real-life applications.
‘Scientific knowledge and understanding’ is one of the major goals of middle school science education.
It will also play an important role in school studies.
Every chapter in this book has a “This is how it works in real life.”
It contains methods for applying and interpreting the scientific knowledge you have learned to real life.
If you've read this entire book and have a good grasp of the scientific terminology, you might be able to skip over this section and write your own story.
To get the most out of this book, try creating your own story from every topic in the book.
I'm really looking forward to seeing how each person interprets the world through science, based on their own experiences and thoughts.
--- p.14

So what about clouds? The troposphere, where we live, is said to have a temperature that decreases with increasing altitude.
The air near the surface is relatively hot and can hold a lot of water vapor.
Additionally, the troposphere is said to be an active convection zone, with hot air rising and cold air sinking, causing air to mix up and down.
Convection causes hot air with a lot of water vapor to rise from near the surface.
The air gets colder and colder, and the amount of water vapor it can hold decreases.
As the air rises, its temperature decreases and eventually the water vapor returns to the form of water droplets.
In places that are too high, the temperature is low, so water droplets freeze and turn into ice crystals.
These ice crystals are called 'ice crystals'.
--- p.58

In real life, melting ice is thawing, melting icicles is solidification, boiling water is vaporization, and steam is liquefaction.
You might think that sublimation is not something that can be easily seen.
Dry ice shrinking and disappearing, frost forming suddenly from water vapor without any water droplets, and ice in your freezer getting smaller over time are all examples of sublimation.
--- p.105

Buoyancy can be experienced in many ways in everyday life.
For example, when swimming, there is a phenomenon where the body floats in the water.
Beginners to swimming often find it difficult to float because they are unable to utilize the volume of water they are submerged in.
If you get into the right position and are evenly submerged in the water, you will have sufficient buoyancy and be able to float well.
Another example is a helium balloon.
Helium is a gas lighter than air, and helium balloons gain buoyancy in the air and fly into the sky.
This property of floating in the air is why you can carry helium balloons around in amusement parks.
--- p.154

Different substances have different degrees of electron affinity.
For example, plastic likes electrons and attracts a lot of them, while fur is good at sending electrons away.
So when you rub plastic and fur, electrons move from the fur to the plastic.
When electrons move like this, the object becomes charged.
- Plastic that has gained electrons with a positive charge becomes negatively charged, and conversely, fur that has lost electrons with a negative charge becomes positively charged.
--- p.203

(X) Blood carries only oxygen and carbon dioxide.
(O) Blood carries various substances, including oxygen and carbon dioxide, as well as nutrients, hormones, and waste products, helping our body's metabolic processes.
(X) Blood is made up of only ‘blood’.
(O) The blood we call 'blood' is made up of blood cells (red blood cells, white blood cells, platelets) and plasma, each of which has a different role.

--- p.260