Scientific exploration.

We are scientists too
1.
Biology and Environment
1 Ecosystems and Ecosystem Components
2 Classification of biological elements
3 Relationships between ecosystem components
4 Ecosystem Balance
5. The impact of abiotic factors on living things
6 Living organisms that adapt to their environment
7. The impact of environmental pollution on living things
● Unit summary, unit final problems

2.
Weather and Our Life
1. The impact of humidity on our lives
2 Dew, fog, clouds
3 The process of rain and snow falling
4 High and low pressure
5 Why the wind blows
6 Seasonal weather in our country
● Unit summary, unit final problems

3.
motion of objects
1. How to represent the motion of an object
2 Motion of various objects
3 Comparison of the speed of objects moving the same distance
4 Comparison of the speed of objects moving over the same period of time
5. How to express the speed of an object
6 Safety devices and traffic safety rules related to speed
● Unit summary, unit final problems

4.
Acids and bases
1 Classification of various solutions
2 Classification of various solutions using indicators ⑴
3 Classification of various solutions using indicators ⑵
4 Changes when substances are placed in acidic and basic solutions
5 Changes when mixing acidic and basic solutions
6. Examples of using acidic and alkaline solutions in everyday life
● Unit summary, unit final problems

A vivid science textbook! New textbooks reflect O2 elementary science!

[The core of the 9 textbooks!]
It consists of a neat concept summary that contains all the important contents of the 9 types of textbooks and problems suitable for checking learning results.

[Exploration made easier with experimental videos!]
Begin your learning with an exploration following the textbook flow, and provide QR code experiment videos to make it easier to understand the exploration.

[Consisting of progress books and assessment books!]
Learn concepts using the progress book and prepare for school unit evaluations and academic achievement assessments using the assessment book.
_Progress book: Completely learn one concept through basic problems (key check ▶ step 1 ▶ step 2) and skill problems, and summarize with unit-ending problems.
_Evaluation book: Unit assessment preparation (unit summary, note test, descriptive note test, unit evaluation, descriptive evaluation) + Academic achievement evaluation preparation

[Includes questions for the Academic Achievement Test!]
_1 question for the Academic Achievement Assessment (Unit 1-2)
_2 questions for the Academic Achievement Test (Units 3-5)