1.
Use of magnets

Day 1 Force acting between magnets and objects
Day 2: The poles of a magnet
Day 3 Forces acting between magnets
Day 4 Forces between a compass and a magnet
Day 5: Device using magnets
Day 6: Organizing your thoughts into a network and evaluating each unit

2.
Changes in the state of water

Day 7: Changes in water status
Day 8: Changes in water freezing and ice melting
Day 9: Changes in water as it evaporates and boils
Changes in the 10th day when water vapor condenses
Day 11: Water Shortage and How to Obtain Water
Day 12: Organize your thoughts into a network and evaluate each unit.

3.
Changes in the land

Day 13: Changes in the Land Due to Flowing Water
Day 14 Volcano
Material from volcanic activity on the 15th day
Rocks formed by volcanic activity on the 16th day
The impact of volcanic activity on the 17th day
The Impact of the 18th Earthquake and How to Cope
Day 19: Organizing Your Thoughts into a Network and Evaluating Units

4.
Various living things and our lives

Day 20: Characteristics and Habitats of Mushrooms and Molds
Day 21: Characteristics and habitats of sea slugs and straw worms
Day 22: Characteristics and habitats of bacteria
Day 23: The impact of various living organisms on our lives and examples of how life sciences are used.
Day 24: Organizing Your Thoughts into a Network and Evaluating Units

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

[The core of the 7 textbooks!]

It consists of a neat concept summary that includes all the important content of the seven textbooks that reflect the 2022 revised curriculum, and problems suitable for checking learning outcomes.

[Explore more easily with experiments and helpful videos!]

Begin your learning with exploration following the textbook flow, and provide experiment videos and helpful videos via QR codes to make exploration easier to understand.

[6 pages a day, complete your science studies in 24 days!]

Complete everything from concepts to problems in one day with a 6-page daily schedule.

[Comprised of progress books and practical books!]

Learn concepts with the progress book and prepare for school exams with the practice book.
Progress book: Step-by-step learning (start with inquiry, understand concepts, complete with problems, conclude the unit, organize ideas into a network, and evaluate the unit)
_Practice Book: Unit Assessment Preparation (Unit Summary, Note Test, Unit Assessment, Descriptive Assessment, Performance Assessment)

『O2』 is a science textbook that provides vivid examples of actual experiments and observations.
『O2』 Elementary Science contains all the important content from the new 2022 revised curriculum 7 science textbooks, and provides friendly explanations so that even students can understand the content on their own.
The book is structured in stages so that you can study concepts and problems step by step, and with the practical book, you can perfectly prepare for school exams and build confidence in science.