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From the building blocks of atoms to the vastness of the cosmos, science shapes everything around us. Our Science Quiz features 30 questions spanning biology, chemistry, physics, astronomy, and earth science.
Whether you're a student revising for exams, a science enthusiast, or just curious about how the world works, these questions will test your knowledge and teach you something new along the way.
AI QuizMaster creates unique science questions every session — no two quizzes are the same. Play daily to sharpen your scientific thinking and climb the leaderboard.
🎮 Start Quiz Now1.What is the atomic number of carbon?
✅ B) 6
2.Which gas makes up most of Earth's atmosphere?
✅ C) Nitrogen
3.What is the powerhouse of the cell?
✅ C) Mitochondria
4.What force keeps planets in orbit around the Sun?
✅ B) Gravity
5.What is the chemical formula for water?
✅ C) H2O
6.How many chromosomes do humans normally have?
✅ C) 46
7.What is the hardest natural substance on Earth?
✅ C) Diamond
8.Which planet has the most moons?
✅ B) Saturn
9.What type of wave is sound?
✅ C) Longitudinal
10.What is the pH of pure water?
✅ C) 7
AI QuizMaster generates unlimited questions across all categories and difficulty levels. Track your score, build streaks, and compete on the global leaderboard.