General Science MCQs Test 0% 0 Report a question What’s wrong with this question? You cannot submit an empty report. Please add some details. 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118 Created by Sneeza Sneeza General Science Test 1 / 118 What is the largest organ in the human body? Brain Heart Lungs Skin Liver 2 / 118 What is the process of a solid turning directly into a gas called? Melting Evaporation Condensation Freezing Sublimation 3 / 118 What is the chemical symbol for iron? Fe Ag Au Pb Ir 4 / 118 What is the process of a gas changing into a liquid called? Evaporation Condensation Melting Sublimation Freezing 5 / 118 What is the process of a liquid turning into a gas at the surface called? Boiling Freezing Evaporation Sublimation Condensation 6 / 118 What is the main component of natural gas? Methane Propane Butane Ethane Octane 7 / 118 What is the study of Earth’s atmosphere called? Meteorology Astronomy Chemistry Biology Geology 8 / 118 Which scientist is credited with the discovery of electromagnetic induction? Isaac Newton James Clerk Maxwell Nikola Tesla Michael Faraday Galileo Galilei 9 / 118 Which of the following is a unit of measurement for distance in space? Newton Second Meter Kilogram Light Year 10 / 118 Which of the following is considered a greenhouse gas? Methane Argon Oxygen Carbon dioxide Nitrogen 11 / 118 Which scientist is known for the theory of relativity? Albert Einstein Galileo Galilei Isaac Newton Nikola Tesla Marie Curie 12 / 118 What is the study of the universe beyond the Earth called? Geology Astronomy Physics Chemistry Biology 13 / 118 Which of the following is a renewable energy source? Solar Oil Nuclear Coal Natural Gas 14 / 118 What is the hardest natural substance on Earth? Quartz Tungsten Graphite Steel Diamond 15 / 118 What is the closest star to Earth, other than the sun? Alpha Centauri Vega Proxima Centauri Betelgeuse Sirius 16 / 118 What is a group of similar cells working together called? Muscle Fluid Organ System Tissue 17 / 118 Which planet is known as the Red Planet? Jupiter Venus Mercury Saturn Mars 18 / 118 Which of the following is a greenhouse gas? Oxygen Argon Nitrogen Neon Carbon Dioxide 19 / 118 Who proposed the theory of general relativity? Isaac Newton Galileo Galilei Stephen Hawking Albert Einstein Niels Bohr 20 / 118 What is the unit of resistance? Watt Volt Joule Ohm Ampere 21 / 118 What is the powerhouse of the cell? Endoplasmic Reticulum Golgi Apparatus Nucleus Ribosome Mitochondria 22 / 118 What is the process of changing a liquid into a gas called? Sublimation Evaporation Freezing Condensation Melting 23 / 118 Which of the following is a metal? Iron Hydrogen Sulfur Nitrogen Oxygen 24 / 118 What is the process by which plants make their food called? Fertilization Transpiration Pollination Respiration Photosynthesis 25 / 118 Which of the following is NOT a type of cloud? Nimbus Cirrus Tsunami Cumulus Stratus 26 / 118 What type of energy is stored in food? Chemical Solar Kinetic Potential Nuclear 27 / 118 Which planet has the most moons in our solar system? Mars Neptune Saturn Jupiter Uranus 28 / 118 Which planet is known as the Red Planet? Earth Venus Jupiter Mars Mercury 29 / 118 Which of the following is a primary color? Orange Green Black Yellow Purple 30 / 118 What is the chemical formula for table salt? CaCO3 NaCl C6H12O6 CO2 H2O 31 / 118 What is the study of living organisms called? Geology Zoology Chemistry Botany Biology 32 / 118 What is the main component of the Earth’s atmosphere? Argon Carbon Dioxide Nitrogen Helium Oxygen 33 / 118 What is the chemical symbol for carbon? Ag Pb Fe Au C 34 / 118 Which subatomic particle has a positive charge? Neutron Proton Positron Meson Electron 35 / 118 Which of the following is a type of simple machine? Spring Gear Lever Screw Pulley 36 / 118 What is the unit of energy in the metric system? Calorie Joule Watt Volt Newton 37 / 118 Which planet is known as the Blue Planet? Venus Saturn Mars Earth Jupiter 38 / 118 What is the freezing point of water in Celsius? 100°C -273°C 50°C 25°C 0°C 39 / 118 What is the center of an atom called? Neutron Photon Electron Nucleus Proton 40 / 118 Which of the following is a greenhouse gas? Oxygen Argon Nitrogen Carbon Dioxide Helium 41 / 118 Which organ in the human body produces insulin? Liver Stomach Pancreas Heart Kidneys 42 / 118 What is the freezing point of water in Celsius? 0°C 50°C -273°C 100°C 25°C 43 / 118 What is the Earth’s outermost layer called? Atmosphere Core Mantle Crust Hydrosphere 44 / 118 What is the study of living organisms called? Botany Biology Geology Physics Chemistry 45 / 118 Which of the following is a primary color of light? Red Green Black Yellow White 46 / 118 What is the study of earthquakes called? Climatology Tectonics Meteorology Volcanology Seismology 47 / 118 What is the chemical symbol for gold? Go Gl Ag Au G 48 / 118 Which of the following is not a renewable source of energy? Wind Geothermal Hydro Solar Coal 49 / 118 Which of the following is a vector quantity? Acceleration Mass Volume Temperature Speed 50 / 118 What is the process of a liquid turning into a gas called? Freezing Melting Sublimation Condensation Evaporation 51 / 118 What is the boiling point of water in Celsius? 25°C -273°C 0°C 100°C 50°C 52 / 118 What is the Earth’s primary source of energy? Sun Wind Coal Oil Water 53 / 118 What is the chemical symbol for gold? Pt Go Au Hg Ag 54 / 118 Who is known as the father of modern chemistry? Joseph Priestley John Dalton Robert Boyle Antoine Lavoisier Dmitri Mendeleev 55 / 118 What is the fastest animal on land? Lion Leopard Pronghorn Cheetah Gazelle 56 / 118 Which planet is known as the Morning Star or Evening Star? Venus Mercury Saturn Mars Jupiter 57 / 118 Which of the following is a type of renewable energy? Natural Gas Coal Nuclear Solar Oil 58 / 118 What does the Richter scale measure? Earthquake Magnitude Humidity Wind Speed Temperature Time 59 / 118 What is the longest bone in the human body? Ulna Tibia Femur Humerus Radius 60 / 118 What is the chemical symbol for water? CO2 H2 O2 NaCl H2O 61 / 118 What is the main function of the red blood cells? Produce energy Digest food Carry oxygen Fight infection Pump blood 62 / 118 Which planet is known as the Morning Star and the Evening Star? Saturn Mars Venus Jupiter Mercury 63 / 118 What is the chemical symbol for water? WA O H2O HO W 64 / 118 What is the process of plants releasing water vapor called? Pollination Respiration Fertilization Transpiration Photosynthesis 65 / 118 Which gas do plants use to produce energy? Oxygen Carbon Monoxide Carbon Dioxide Nitrogen Helium 66 / 118 What is the largest organ in the human body? Skin Lungs Liver Heart Brain 67 / 118 Which of the following is not a state of matter? Light Solid Gas Plasma Liquid 68 / 118 Which scientist is known for the theory of relativity? Isaac Newton Albert Einstein Marie Curie Galileo Galilei Nikola Tesla 69 / 118 What is the unit of measurement for force? Watt Volt Newton Ampere Joule 70 / 118 What is the chemical formula for water? H2O H2SO4 CO2 CH4 NaCl 71 / 118 Which planet is the hottest in our solar system? Mercury Mars Jupiter Earth Venus 72 / 118 What is the study of the Earth’s physical structure and substance called? Zoology Botany Biology Geology Chemistry 73 / 118 What is the largest planet in our solar system? Venus Jupiter Mercury Mars Earth 74 / 118 Which gas do plants use for photosynthesis? Carbon Dioxide Helium Hydrogen Oxygen Nitrogen 75 / 118 What is the process of a gas turning into a liquid called? Sublimation Condensation Melting Freezing Evaporation 76 / 118 Which planet is known as the Red Planet? Saturn Mercury Jupiter Venus Mars 77 / 118 What is the chemical symbol for helium? Li Ne He H Be 78 / 118 What is the process of a solid changing directly into a gas called? Condensation Sublimation Freezing Melting Evaporation 79 / 118 Which type of rock is formed by the cooling of magma or lava? Sedimentary Volcanic Metamorphic Igneous Granite 80 / 118 Which natural disaster is measured using the Richter scale? Volcano Tornado Tsunami Earthquake Hurricane 81 / 118 What force pulls all objects towards the center of the Earth? Friction Gravity Tension Buoyancy Magnetism 82 / 118 What is the process of a gas turning into a liquid called? Sublimation Freezing Melting Evaporation Condensation 83 / 118 What is the speed of light in a vacuum? 150,000 km/s 350,000 km/s 250,000 km/s 200,000 km/s 300,000 km/s 84 / 118 What type of energy does a battery store? Solar Energy Chemical Energy Potential Energy Nuclear Energy Kinetic Energy 85 / 118 What is the process of the Earth’s outer layer breaking into pieces called? Erosion Glaciation Tectonic Plates Weathering Volcanism 86 / 118 What is the strongest force in the universe? Strong nuclear force Electromagnetism Weak nuclear force Gravity Friction 87 / 118 Which of the following is a noble gas? Hydrogen Helium Nitrogen Oxygen Carbon 88 / 118 What is the chemical symbol for iron? Cu Au Ag Fe Ir 89 / 118 What is the force that pulls objects towards the center of the Earth? Tension Buoyancy Friction Gravity Magnetism 90 / 118 What is the main function of the ozone layer? Control climate Produce oxygen Trap heat Absorb carbon dioxide Protect from UV radiation 91 / 118 What is the SI unit of frequency? Joule Newton Ampere Hertz Watt 92 / 118 What is the largest organ in the human body? Lungs Skin Heart Liver Brain 93 / 118 What is the main function of red blood cells? Store Energy Fight Infection Carry Oxygen Produce Insulin Digest Food 94 / 118 What is the atomic number of hydrogen? 1 5 3 4 2 95 / 118 What is the chemical symbol for gold? Gd Ag Go Au Gl 96 / 118 Which element has the highest melting point? Tungsten Carbon Lead Platinum Nickel 97 / 118 Which of the following is a type of simple machine? Lever Screw Gear Wheel Pulley 98 / 118 What is the chemical formula for water? CO2 CaCO3 H2O H2O2 NaCl 99 / 118 What is the process of a liquid turning into a gas called? Evaporation Freezing Condensation Sublimation Melting 100 / 118 Which of the following is a primary color of light? Red Black Green Yellow White 101 / 118 What is the chemical symbol for silver? Au Cu Pb Fe Ag 102 / 118 How many bones are in the human body? 100 150 300 120 206 103 / 118 What causes tides in the oceans? Wind patterns Sun's gravity Earth's rotation Underwater volcanoes Moon's gravity 104 / 118 Which of the following is not a renewable energy source? Hydroelectric Coal Wind Geothermal Solar 105 / 118 Which gas do plants use for photosynthesis? Hydrogen Nitrogen Oxygen Carbon Dioxide Helium 106 / 118 What is the closest star to Earth? Alpha Centauri Proxima Centauri Sirius Sun Betelgeuse 107 / 118 What is the process by which plants make their food? Respiration Evaporation Digestion Photosynthesis Fermentation 108 / 118 What is the hardest natural substance on Earth? Gold Silver Iron Diamond Platinum 109 / 118 Which type of rock is formed from cooling magma or lava? Granite Volcanic Sedimentary Metamorphic Igneous 110 / 118 Which of the following is a mammal? Turtle Snake Salmon Dolphin Frog 111 / 118 What is the chemical symbol for gold? Cu Au Ag Pb Fe 112 / 118 Which gas makes up the largest percentage of the Earth’s atmosphere? Helium Carbon Dioxide Argon Oxygen Nitrogen 113 / 118 What is the hardest natural substance on Earth? Platinum Steel Silver Gold Diamond 114 / 118 What is the process of plants making food using sunlight called? Germination Pollination Transpiration Photosynthesis Respiration 115 / 118 What is the SI unit for measuring temperature? Fahrenheit Celsius Rankine Newton Kelvin 116 / 118 Which planet is known as the red planet? Jupiter Mercury Saturn Mars Venus 117 / 118 What is the chemical symbol for hydrogen? O Ar He N H 118 / 118 What is the process by which plants make their food called? Digestion Respiration Fermentation Decomposition Photosynthesis Your score isShare your result on social media. LinkedIn Facebook VKontakte 0% Restart quiz