[Volume 1]
Ⅰ.
Composition of matter
01.
Element ------------------------------- 012
02.
Atoms and Molecules ------------------------ 026
03.
Ion ------------------------------- 042
Ⅱ.
Electricity and Magnetism
01.
Static electricity and electrostatic induction --------------- 074
02.
Voltage and current ------------------------ 088
03.
Honey ------------------------------ 104
Ⅲ.
solar system
01.
Earth's Size and Motion ----------------- 132
02.
Size and Movement of the Moon ------------------- 148
03.
Composition of the Solar System ---------------------- 162
Ⅳ.
Plants and Energy
01.
Photosynthesis ----------------------------- 188
02.
Plant Respiration ------------------------ 206
supplement
Dictionary of Scientific Terms -------------------------- 230
Search -------------------------------- 239

[Volume 2]
V.
Animals and Energy
01.
The composition and nutrients of living organisms -------- 012
02.
Digestion and Circulation ------------------------ 024
03.
Breathing and Excretion ------------------------ 046
Ⅵ.
Properties of matter
01.
Properties of Materials (1) -------------------- 078
02.
Properties of Materials (2) -------------------- 094
03.
Separation of mixtures ---------------------- 114
Ⅶ.
Hydrosphere and ocean circulation
01.
Water rights ------------------------------- 144
02.
Ocean circulation ------------------------ 158
Ⅷ.
Heat and Our Life
01.
Heat transfer -------------------------- 180
02.
Specific heat and thermal expansion ---------------------- 192
Ⅸ.
Disasters, Catastrophes and Safety
01.
Disasters, Catastrophes, and Safety ------------------ 218
supplement
Dictionary of Scientific Terms -------------------------- 230
Search -------------------------------- 239

[Volume 3] Answers and Explanations

A must-read for science experts, HIGH TOP, a leading brand with 30 years of science expertise.

Detailed, structured explanations and high-level questions make a difference in your skills!

● Complete analysis of the contents of 5 textbooks, completing a framework for systematic understanding of concepts!
The contents of the five textbooks were thoroughly analyzed and explained step by step in easy sentences.
If you organize it into easy sentences like high-top, you can understand it more easily and quickly than if you summarize the key points.

● Challenge yourself to become a scientific expert through exploration, intensive analysis, and deepening!
The explorations included in the textbook are organized in an easy-to-understand manner with vivid photos that mimic real-life activities. Furthermore, the focused analysis systematically analyzes the key topics you must know, enabling you to more fully understand the learning content.
Additionally, you can deepen your skills through advanced content that is not available in other textbooks.

● Build solid skills through step-by-step problems!
It is structured as follows: "Concept confirmation problems → Skill enhancement problems → Descriptive problems → Top-tier challenge problems → Creativity and thinking skills improvement problems", so you can build solid skills by solving problems one by one.

● Hightop's special appendix - Includes a scientific term dictionary and index!
We explain scientific terms that students find difficult in detail and provide related photos and illustrations to make them easier to understand.
Additionally, we have included an index to help you easily find concepts you are curious about.

● Easy to understand and detailed explanation!
We provide detailed and helpful explanations to help you easily understand incorrect problems, and we analyze and present the information you need to know from important figures and materials presented in the problems.