Science 1 / 30 Which planet is known as the “Blue Planet”? Earth Uranus Neptune 2 / 30 What is the study of earthquakes called? Volcanology Seismology Meteorology 3 / 30 What gas is essential for human respiration? Oxygen Nitrogen Carbon dioxide 4 / 30 What is HCl commonly known as? Hydrochloric Acid Hydrogen chloride Sulfuric acid 5 / 30 What is the speed of light? 3000 km/s 300000 km/s 30000 km/s 6 / 30 What part of the human brain is responsible for memory? Cerebellum Hippocampus Medulla 7 / 30 What is the main function of red blood cells? Carry Oxygen Fight infection Clot blood 8 / 30 Which planet has the most moons? Earth Jupiter Neptune 9 / 30 What part of the plant conducts photosynthesis? Roots Leaves Stem 10 / 30 What is the most abundant element in the universe? Hydrogen Oxygen Helium 11 / 30 What is the nearest star to Earth? The Sun Alpha Centauri Sirius 12 / 30 What force keeps us on the ground? Magnetism Gravity Friction 13 / 30 What is the largest organ in the human body? Skin Liver Lungs 14 / 30 What is the chemical symbol for gold? Ag Au Gd 15 / 30 Which blood cells help fight infection? White blood cells Red blood cells Platelets 16 / 30 What planet is known for its rings? Jupiter Saturn Neptune 17 / 30 What is the main gas found in the air we breathe? Nitrogen Oxygen Carbon dioxide 18 / 30 What vitamin is produced when sunlight hits the skin? Vitamin C Vitamin D Vitamin B12 19 / 30 What part of the human body controls balance? Heart Cerebellum Liver 20 / 30 What is the boiling point of water at sea level? 100°C 90°C 120°C 21 / 30 Which gas do humans exhale during respiration? Carbon dioxide Oxygen Hydrogen 22 / 30 What planet is closest to the Sun? Mercury Venus Earth 23 / 30 What is the hardest natural substance on Earth? Gold Iron Diamond 24 / 30 Which organ pumps blood throughout the human body? Heart Lungs Brain 25 / 30 What part of the cell contains genetic material? Ribosome Cytoplasm Nucleus 26 / 30 What is the process of converting water vapor into liquid water called? Evaporation Condensation Sublimation 27 / 30 What is the center of an atom called? Electron Nucleus Proton 28 / 30 What gas do plants absorb during photosynthesis? Carbon dioxide Oxygen Nitrogen 29 / 30 Which planet is known as the Red Planet? Venus Mars Jupiter 30 / 30 What is the chemical symbol for water? CO₂ H₂O O₂ Your score isThe average score is 56% 0% Restart quiz
