1.
The Earth we live on

① Siblings, Return to Earth! 22
# Shape of the Earth # Land and Sea # Water # Atmosphere
Amy's Textbook Plus: What Other Role Does Air Play? 33
② 34 Special Minerals Found in Hawaii
# mineral # igneous rock # sedimentary rock # strata # fossil # metamorphic rock
Amy's Textbook Plus: Can't Live Without Minerals! 57
- Common Playground: Maze 58

2.
The ever-changing Earth

① The Secret of the Amazing Green Beach 60
# Weathering and soil formation # Erosion # Landforms created by water
Amy's Textbook Plus: Science Hidden in the Soil 69
② Discovering a new jelly 70
# earthquake # earthquake zone # volcanic activity # volcanic zone
Amy's Textbook Plus: What if Mount Baekdu Erupts? 91
- Common Playground: Hidden Picture Game 92

3.
Earth in motion

① Where the sun never sets 94
# rotation # movement of the sun # day and night # movement of stars and moon # white night # polar night
Amy's Textbook Plus: Why Does the Earth Rotate? 107
② Midsummer Christmas 108
# Orbit # Length of day and night # Southern and Northern Hemispheres # Change of seasons
Amy's Textbook Plus: Different Constellations Visible Each Season! 127
- Common Playground: Oh! Well Done! Sticker 128

4.
Earth's friend, the moon

① Dr. Jeong Becomes a Monster 130
# Moon's surface # Moon's rotation and revolution # Moon's shape # Moon's rise and set times
Amy's Textbook Plus: Hide and Seek with the Moon and the Sun 149
② 150 snacks tricked by Eui-Tteum
#Moon's gravity #Moon's environment #Far side of the moon
Amy's Textbook Plus: What if Humans Lived on the Moon? 163
③ The emergence of a new villain 164
# The moon's influence on the Earth
Amy's Textbook Plus: The Moon That's Getting Farther Away 181
- Common playground moon-shaped sticker 182

Correct answer 184
Glossary 185
Search 186
Coloring 188

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 was written by a science major who received his bachelor's and master's degrees from KAIST.
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 informative activities with bonus stickers!
Once you've finished a unit, you can try out fun activities based on what you've learned so far.
There are plenty of exciting games to enjoy, including finding a maze to get a treasure chest, finding hidden objects on an erupting volcano island, putting on "Wow! Great job!" stickers, and putting on moon-shaped stickers.
Don't miss out on the bonus stickers of the common siblings, puppy thumbs, and snack group!