Part 1: Properties of Matter
Chapter 1 - Density
Chapter 2 - Solubility
Chapter 3 - Boiling Point, Melting Point, and Freezing Point
Chapter 4 - Methods for Separating Mixtures

Part 2: Changes in land rights
Chapter 5 - The Layered Structure of the Land Rights
Chapter 6 - The Substances That Make Up Perception
Chapter 7 - Changes in Perception

Part 3 Light and Waves
Chapter 8 - The Principles of Seeing Objects
Chapter 9 - Reflection of Light and Mirrors
Chapter 10 - Refraction of Light and Lenses
Chapter 11 - Waves

Part 4: Composition of Matter
Chapter 12 - Elements
Chapter 13 - Atoms
Chapter 14 - Molecules
Chapter 15 - Ion

Part 5: Plants and Energy
Chapter 16 - Photosynthesis
Chapter 17 - Factors Affecting Photosynthesis
Chapter 18 - Transpiration
Chapter 19 - Plant Respiration

Part 6 Animals and Energy
Chapter 20 - The stages of animal life
Chapter 21 - Digestive System
Chapter 22 - Circulatory System
Chapter 23 - Respiratory System
Chapter 24 - Excretory System
Chapter 25 - Cellular Respiration

Part 7 Electricity and Magnetism
Chapter 26 - Frictional Electricity
Chapter 27 - Electrostatic Induction
Chapter 28 - Current, Voltage, and Resistance
Chapter 29 - Ohm's Law
Chapter 30 - Connecting Resistances
Chapter 31 - Electromagnetic Force
Chapter 32 - Electric Motors

Part 8: Stars and Space
Chapter 33 - Stars
Chapter 34 - The Universe

Eunhye, a current science teacher and YouTube lecturer
The revised edition of the world's kindest science concept book has been published!
With a 5.0 rating on online bookstores and a beloved "daily lecture" by a current science teacher, "Graceful Science Life (Middle School 2nd grade)" has returned, reflecting the latest revised curriculum for 2022.
This book, which allows students to master science through self-study without attending an academy or paying for online classes, has been loved by many students for its cute illustrations and easy-to-understand explanations drawn by the author himself.
This revised edition includes newly added chapters on 'Changes in the Earth's Sphere', 'Light and Waves', and 'Stars and the Universe', and the order has been changed to match the latest curriculum.

Fully reflects the latest revised curriculum for 2022!
A structure optimized for self-study!
This book is a new version of the 2nd year middle school lectures from the YouTube channel "Graceful Science Life" that has been revised to match the latest 2022 curriculum.
It is structured so that you first slowly read the book to grasp the concepts, and then review the content by watching YouTube lectures provided via QR codes.
You can also check whether you have properly understood what you have learned by taking the 'Initial Consonant Quiz' at the end of each unit.
If you follow these step-by-step learning methods, you will gradually understand scientific principles through self-study without having to go to an academy.

Perfect with YouTube lectures and study checklists!
At the beginning of each new chapter, we've included a QR code for the author's YouTube video, allowing you to easily watch the video while reading the book.
Additionally, you can plan your studies by keeping a record of your own studies using the study checklist provided at the beginning of the book.
With just this one book, you can perfectly complete second-year middle school science without going to an academy.