Grade 8
Science
Quiz

What is the free Grade 8 Science Quiz?

The Grade 8 Science Quiz is a free web app for practicing middle school science with short original 4-choice questions. It supports students who want quick review and teachers or families who need simple material for class or homework review.

It covers chemical changes, atoms and molecules, conservation of mass, electric current and circuits, current and magnetic fields, animal body systems, weather changes, and observation and experiment skills.

What makes this quiz site useful?

• Choose a short course by unit, or use a larger mixed course for broad review.
• Practice in a time-attack style that makes repeated review feel like a small challenge.
• Use ranking, My Page history, and often-missed question records to notice weak areas.
• Check hints and simple self-made diagrams when a question needs visual support.

Topic courses for Grade 8 science

• 10-question basic mixed practice
• 20-question chemical changes and particles
• 20-question chemical changes and mass
• 20-question electric current and circuits
• 20-question current and magnetic fields
• 20-question animal body and functions
• 20-question weather changes
• 30-question observation and experiment skills
• 50-question regular test review mix
• 100-question comprehensive science challenge

Practice important Grade 8 science units

Students can focus on chemical reactions, mass changes, electric circuits, Ohm law, current and magnetic fields, digestion and absorption, blood circulation, humidity, fronts, and weather changes. Mixed courses help when a broader review is needed before a regular test.

Each question appears one by one with hints and simple diagrams, so the quiz works well for homework review, test preparation, and short study sessions.

Reason from conditions, results, and diagrams

The questions ask learners to connect observations and experiment results with science ideas. This helps them practice reading conditions, interpreting graphs or diagrams, and choosing an answer with evidence.

Students can review chemical changes, conservation of mass, electric circuits, Ohm law, animal body functions, weather changes, and experiment skills.

Hints and self-made diagrams for each question

Hints change according to the current question and include self-made SVG diagrams for particles, circuits, coils, body systems, weather, clouds, fronts, and experiments.

Sources and production policy

This quiz is independently created by this site with reference to public curriculum-level science topics, basic scientific knowledge, and common observation and experiment ideas. It is not affiliated with any textbook, workbook, drill, worksheet, test, educational-material publisher, or textbook series.

• Question text, answer choices, hints, explanations, diagrams, images, and course order are designed for this app.
• We do not copy textbook or workbook questions, and we do not create near-copy questions by only changing numbers, endings, choices, or diagrams.
• We do not use publisher names, textbook titles, textbook chapter-order claims, or textbook-aligned claims.
• Images and diagrams are created by this site or use materials whose usage conditions have been checked.
• If a rights or accuracy concern is reported, we review the content and revise or remove it when necessary.

Reference information checked for production includes these public resources.

• MEXT: Junior high school course of study commentary
• Japan Association of Educational Materials Publishers: school materials and copyright
• Copyright Research and Information Center: copyright limitations and quotation
• SARTRAS: public transmission compensation system for school lessons

Quiz questions and explanations are not reproduced from those sources; they are written as original content for this app.

If you notice an error, have a rights-related concern, or need to contact us, please use the contact form. We will review the report and revise or remove content when necessary.