References

This quiz uses general learning areas from public curriculum information and basic science knowledge. It does not copy textbook, workbook, drill, or test questions.

• Ministry of Education, Culture, Sports, Science and Technology: Elementary School Course of Study, Science
• MEXT: Elementary School Course of Study Commentary
• Japan Association of Learning Materials Publishers: School materials and copyright
• Copyright Research and Information Center: limitations on copyright
• SARTRAS: Compensation system for public transmission for school lessons

Production policy

This quiz is original content created by this site. It is not affiliated with any textbook, workbook, publisher, or school material series.

Topic names are used only as general learning areas. The wording, choices, hint flow, diagrams, and question order are independently designed.

When creating questions, we avoid copying or paraphrasing existing textbook, workbook, drill, or test questions. Illustrations and diagrams used in hints are self-made.

Review rule

Before publication, questions should be checked for accuracy, age appropriateness, and similarity to existing materials. If a rights holder contacts us, the relevant content should be unpublished promptly and reviewed.

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