Sources and Original Content Policy
This quiz is independently created by this site. It is not affiliated with any specific textbook, workbook, drill, test, publisher, or teaching material.
Reference scope
The quiz uses broad learning areas from public curriculum information and general science knowledge. It does not copy textbook text, workbook questions, diagrams, answer choices, order, or explanation flow.
- Ministry of Education, Culture, Sports, Science and Technology: Junior High School Course of Study and science commentary.
- General safety principles for school science experiments.
- General scientific concepts such as substances, solutions, light, sound, force, living things, rocks, strata, and earthquakes.
Production rules
- Do not create questions while looking at textbook, workbook, drill, or test questions.
- Do not rewrite existing questions by only changing numbers, endings, choices, or drawings.
- Create every question, answer choice, hint, and SVG diagram independently.
- Use only original images or assets with confirmed usage rights.
- Before publication, review samples for similarity to existing teaching materials.
Reference links