1.
Weight and gravity
① Let's go to the amusement park! 22
# Elasticity # Spring scale # Horizontal # Dual-arm scale
- Amy's Textbook Plus Scales Around Us 47
② Euteum, meet your ideal type 48
# gravity # weight # mass
Amy's Textbook Plus: Is There Really No Gravity on the Space Station? 61
- Common playground scale leveling 62

2.
Force and Motion
① Amy's Burning Racing 64
# force # friction # buoyancy
How would you describe Amy's textbook power? 81
② The mysterious group chasing the siblings 82
#Movement #Speed ​​#Direction and speed of force #Inertia
- Amy's textbook plus inertia causes this to happen too! 99
- Finding 100 Errors in Common Playground Promotional Posters

3.
Work and Energy
① What we did wasn't work?! 102
# Work # Energy # The relationship between work and energy
- Amy's Textbook Plus: The Transformation of Work and Energy, Goldberg Device 111
② The Secret of the Haunted House 112
# Kinetic energy # Potential energy
Amy's Textbook Plus We Have Energy Too! 135
- Finding Scientifically Working People in Common Playgrounds 136

4.
Energy Transition and Conservation
① We're not devils! 138
# Mechanical energy # Mechanical energy conversion # Conservation of energy
Amy's Textbook Plus Abandoned Energy Again! 161
② Siblings in a Trap 162
# Generation of electrical energy # Conversion of electrical energy
Amy's Textbook Plus: Cherishing Electric Energy! 173
- Common Playground Power Plant Maze 174

Correct answer 176
Glossary 177
Search 178

1.
We've brought together the best experts to create the ultimate science introductory book!
It's not easy to achieve both expertise and fun in children's science books.
This book brings together the best experts in each field to achieve difficult goals.
The planning and editing were done by researchers at the KAIST Science Gifted Education Research Institute who have been teaching children for a long time.
The research team, comprised of experts in physics, chemistry, life sciences, and earth sciences, participated in all stages of book production, from selecting the book's topic and organizing the table of contents to reviewing and editing the content, thereby enhancing the book's completeness.
To deliver learning information in an engaging way, a webtoon writer created an interesting story, and a professional writer with a science background checked the learning content and supplemented the story.
The information corner is written by a specialist with a degree in a scientific field.
The characters are the best creators of this era who need no further explanation, the common siblings, and the veteran illustrator has further enhanced the charm of the common siblings.
With the common goal of developing high-quality introductory science books for children, the future leaders, the best production teams have come together to develop science educational comics that combine expertise and fun.

2.
Reading interesting stories will help you build your scientific knowledge!
No more science educational comics with separate stories and learning content! Previously, science educational comics often blended the story and learning content like oil and water, resulting in children simply reading the story and moving on.
《The Common Siblings' Science Exploration》 exquisitely integrates learning information into the story, so that learning content can be remembered naturally just by watching the cartoon.
Now, enjoy reading comics and build up your scientific knowledge without even realizing it!

3.
Textbooks cover basics, the latest research, and domestically relevant information!
The basis of science learning is textbooks.
We thoroughly analyzed the contents of elementary school science textbooks, divided them into volumes by topic, and included all the textbook contents in each volume.
To systematically convey scientific knowledge to children, the table of contents was organized and stories were created in accordance with the curriculum.
We've enriched the content by adding topics that children might find interesting, the latest research, and information related to our country that aren't in the textbook.

4.
Satisfy your children's curiosity about science!
The odd questions children ask make great science topics in themselves.
The editorial team conducted a survey during the planning stage, receiving over 3,000 questions from elementary school students.
Among them, we selected the most frequently asked or novel questions that children are curious about and organized the text in a format of answering them.
What science questions do you think your friends are most curious about?

5.
Fun and fulfilling activities!
Once you've finished a unit, you can try out fun activities based on what you've learned so far.
It's full of exciting games, such as leveling a scale with the weight of the main characters, finding errors in an amusement park promotional poster, finding people who work scientifically, and finding a power plant maze.