200 Science Trivia Questions and Answers for Curious Minds
Science is everywhere, from the stars above us to the atoms we cannot see, and it makes the world an endlessly fascinating place. Whether you are planning a classroom quiz, family game night, youth group activity, or just want to challenge your brain, these 200 science trivia questions and answers cover biology, chemistry, physics, Earth science, space, and fun weird facts that spark curiosity.
🔍 General Science Trivia (1–40)
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What is the study of living things called
➡️ Answer: Biology -
What is the study of matter and energy called
➡️ Answer: Physics -
What is the study of rocks called
➡️ Answer: Geology -
What is the study of the stars and planets called
➡️ Answer: Astronomy -
What is the study of chemicals and how they react called
➡️ Answer: Chemistry -
What is the basic unit of life
➡️ Answer: The cell -
What gas do humans need to breathe
➡️ Answer: Oxygen -
What gas do plants take in for photosynthesis
➡️ Answer: Carbon dioxide -
What gas do plants release
➡️ Answer: Oxygen -
What is Earth’s only natural satellite
➡️ Answer: The Moon -
What do we call scientists who study the weather
➡️ Answer: Meteorologists -
What tool is used to measure temperature
➡️ Answer: Thermometer -
What tool measures atmospheric pressure
➡️ Answer: Barometer -
What is the force that pulls objects toward Earth
➡️ Answer: Gravity -
Who proposed the three laws of motion
➡️ Answer: Isaac Newton -
What is the center of an atom called
➡️ Answer: Nucleus -
What tiny particles orbit the nucleus of an atom
➡️ Answer: Electrons -
How many states of matter are there in basic school science
➡️ Answer: Three, solid, liquid, gas -
What do you call water in its solid state
➡️ Answer: Ice -
What do you call water in its gas state
➡️ Answer: Water vapor -
What is H2O
➡️ Answer: Water -
What is the boiling point of water in Celsius
➡️ Answer: 100 degrees Celsius -
What is the freezing point of water in Celsius
➡️ Answer: 0 degrees Celsius -
What do you call the change from liquid to gas
➡️ Answer: Evaporation -
What do you call the change from gas to liquid
➡️ Answer: Condensation -
What do you call the change from solid directly to gas
➡️ Answer: Sublimation -
What do we call a test in science
➡️ Answer: An experiment -
What is a guess based on observation called in science
➡️ Answer: A hypothesis -
What is information gathered in an experiment called
➡️ Answer: Data -
What is a conclusion based on evidence called
➡️ Answer: Inference -
What is the metric unit for length
➡️ Answer: Meter -
What is the metric unit for mass
➡️ Answer: Gram or kilogram -
What is the metric unit for time
➡️ Answer: Second -
What is the metric unit for temperature
➡️ Answer: Degree Celsius or Kelvin -
What do you call something that can be changed in an experiment
➡️ Answer: Variable -
What is a factor that stays the same in an experiment
➡️ Answer: Constant -
What is the group in an experiment that does not receive the treatment
➡️ Answer: Control group -
What do you call the curved surface of water in a cylinder
➡️ Answer: Meniscus -
What is a scientific law
➡️ Answer: A statement that describes a consistent natural behavior -
What is a scientific theory
➡️ Answer: An explanation supported by evidence and repeated tests
🌋 Earth Science and Weather Trivia (41–80)
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What layer of Earth do we live on
➡️ Answer: The crust -
What is the hot, molten rock beneath Earth’s surface called
➡️ Answer: Magma -
What is magma called when it reaches the surface
➡️ Answer: Lava -
What do we call a shaking of the ground caused by movement of Earth’s crust
➡️ Answer: Earthquake -
What scale measures earthquake strength
➡️ Answer: Richter scale -
What is a large, cone shaped mountain that erupts
➡️ Answer: Volcano -
What is a scientist who studies earthquakes called
➡️ Answer: Seismologist -
What is the layer of gases surrounding Earth called
➡️ Answer: Atmosphere -
What gas makes up most of the atmosphere
➡️ Answer: Nitrogen -
What keeps Earth’s air and water from drifting off into space
➡️ Answer: Gravity -
What is the imaginary line that runs around the middle of Earth
➡️ Answer: The equator -
What do we call the north and south ends of Earth’s axis
➡️ Answer: The poles -
What causes day and night on Earth
➡️ Answer: Earth’s rotation on its axis -
How long does it take Earth to rotate once
➡️ Answer: About 24 hours -
How long does it take Earth to orbit the Sun
➡️ Answer: About 365 days -
What do we call the path Earth takes around the Sun
➡️ Answer: Orbit -
What causes the seasons
➡️ Answer: The tilt of Earth’s axis and its orbit around the Sun -
What is the water cycle
➡️ Answer: The movement of water through evaporation, condensation, and precipitation -
What is rain, snow, sleet, or hail called
➡️ Answer: Precipitation -
What do we call frozen water that falls as soft, white flakes
➡️ Answer: Snow -
What is a huge, rotating storm with strong winds over warm ocean water
➡️ Answer: Hurricane or typhoon -
What is a funnel shaped cloud with very strong winds over land
➡️ Answer: Tornado -
What is a long period with little or no rain called
➡️ Answer: Drought -
What do we call the average weather over a long period
➡️ Answer: Climate -
What is a large body of salt water called
➡️ Answer: Ocean -
What is a smaller body of freshwater surrounded by land called
➡️ Answer: Lake -
What do you call a stream of water that flows into a larger body of water
➡️ Answer: River -
What do we call the process where wind and water wear away rock
➡️ Answer: Erosion -
What do we call the breaking down of rocks into smaller pieces
➡️ Answer: Weathering -
What are solid, natural substances found in rocks called
➡️ Answer: Minerals -
What do we call rocks formed from cooled lava or magma
➡️ Answer: Igneous rocks -
What do we call rocks formed from layers of sediment
➡️ Answer: Sedimentary rocks -
What rocks are formed under heat and pressure from existing rocks
➡️ Answer: Metamorphic rocks -
What is a scientist who studies rocks and minerals called
➡️ Answer: Geologist -
What do we call frozen water at the poles and mountains
➡️ Answer: Glaciers -
What do we call the study of Earth’s oceans
➡️ Answer: Oceanography -
What layer of the atmosphere protects us from ultraviolet rays
➡️ Answer: Ozone layer -
What do we call a huge storm of wind and dust in dry regions
➡️ Answer: Dust storm -
What instrument measures wind speed
➡️ Answer: Anemometer -
What is the boundary between two air masses with different temperatures called
➡️ Answer: A front
🌌 Space and Astronomy Trivia (81–120)
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What galaxy do we live in
➡️ Answer: The Milky Way -
What type of galaxy is the Milky Way
➡️ Answer: Spiral galaxy -
What is the name of our star
➡️ Answer: The Sun -
How many planets are in our solar system
➡️ Answer: Eight -
What planet is closest to the Sun
➡️ Answer: Mercury -
What planet is known as the Red Planet
➡️ Answer: Mars -
What is the largest planet in our solar system
➡️ Answer: Jupiter -
What planet has the most visible rings
➡️ Answer: Saturn -
What is the second planet from the Sun
➡️ Answer: Venus -
What planet is known as the Blue Planet
➡️ Answer: Earth -
What planet is farthest from the Sun
➡️ Answer: Neptune -
What dwarf planet used to be considered the ninth planet
➡️ Answer: Pluto -
What do we call a space rock that enters Earth’s atmosphere and burns up
➡️ Answer: Meteor -
What do we call a space rock that hits the ground
➡️ Answer: Meteorite -
What do we call a chunk of ice and rock with a tail that orbits the Sun
➡️ Answer: Comet -
What is a large group of stars held together by gravity called
➡️ Answer: Galaxy -
What is a massive star explosion called
➡️ Answer: Supernova -
What is a region of space with gravity so strong that light cannot escape
➡️ Answer: Black hole -
What is a person trained to travel in space called
➡️ Answer: Astronaut -
What was the first satellite launched into space
➡️ Answer: Sputnik 1 -
Who was the first human to walk on the Moon
➡️ Answer: Neil Armstrong -
In what year did humans first land on the Moon
➡️ Answer: 1969 -
What mission first landed humans on the Moon
➡️ Answer: Apollo 11 -
What is the path an object takes around another object in space
➡️ Answer: Orbit -
What causes the Moon’s phases
➡️ Answer: Its position relative to Earth and the Sun -
What is a full blocking of the Sun by the Moon called
➡️ Answer: Solar eclipse -
What is it called when Earth blocks sunlight from the Moon
➡️ Answer: Lunar eclipse -
What is the imaginary line Earth spins on
➡️ Answer: Axis -
What do we call groups of stars that form patterns
➡️ Answer: Constellations -
What is the closest star to Earth besides the Sun
➡️ Answer: Proxima Centauri -
What large telescope orbits Earth to study space
➡️ Answer: Hubble Space Telescope -
What is the study of the universe called
➡️ Answer: Cosmology -
What theory explains the beginning of the universe
➡️ Answer: The Big Bang theory -
What do we call a planet outside our solar system
➡️ Answer: Exoplanet -
What is the Milky Way’s nearest galaxy neighbor
➡️ Answer: Andromeda Galaxy -
What is a light year
➡️ Answer: The distance light travels in a year -
What gas mostly makes up the Sun
➡️ Answer: Hydrogen -
What process powers the Sun’s energy
➡️ Answer: Nuclear fusion -
What region filled with icy bodies lies beyond Neptune
➡️ Answer: Kuiper Belt -
What distant cloud of icy objects surrounds the solar system
➡️ Answer: Oort Cloud
🧬 Biology and Human Body Trivia (121–160)
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What is the basic unit of life
➡️ Answer: The cell -
What is the study of animals called
➡️ Answer: Zoology -
What is the study of plants called
➡️ Answer: Botany -
What organ pumps blood
➡️ Answer: Heart -
What organ helps you breathe
➡️ Answer: Lungs -
What organ controls your body
➡️ Answer: Brain -
What organ absorbs nutrients
➡️ Answer: Small intestine -
What organ filters blood
➡️ Answer: Kidneys -
What carries oxygen in blood
➡️ Answer: Hemoglobin -
How many chambers does the heart have
➡️ Answer: Four -
How many bones does an adult have
➡️ Answer: 206 -
What connects muscle to bone
➡️ Answer: Tendons -
What connects bone to bone
➡️ Answer: Ligaments -
What is the outer layer of skin called
➡️ Answer: Epidermis -
What part of the eye controls light entry
➡️ Answer: Pupil -
What sense organ helps with balance
➡️ Answer: Inner ear -
What are animals that eat plants called
➡️ Answer: Herbivores -
What animals eat meat
➡️ Answer: Carnivores -
What animals eat plants and meat
➡️ Answer: Omnivores -
What process allows plants to make food
➡️ Answer: Photosynthesis -
What pigment makes plants green
➡️ Answer: Chlorophyll -
What animals are active at night
➡️ Answer: Nocturnal animals -
What change turns a caterpillar into a butterfly
➡️ Answer: Metamorphosis -
What animals have feathers
➡️ Answer: Birds -
What animals have scales
➡️ Answer: Reptiles -
What animals live on land and water
➡️ Answer: Amphibians -
What animals produce milk for their young
➡️ Answer: Mammals -
What do we call a group of the same organisms
➡️ Answer: Population -
What is a community of organisms interacting
➡️ Answer: Ecosystem -
What is the variety of life called
➡️ Answer: Biodiversity -
What organ helps detoxify chemicals
➡️ Answer: Liver -
What blood cells fight infection
➡️ Answer: White blood cells -
What part of the brain controls memory
➡️ Answer: Hippocampus -
What part of the body makes insulin
➡️ Answer: Pancreas -
What is the largest organ of the body
➡️ Answer: Skin -
What bones protect the heart and lungs
➡️ Answer: Ribs -
What is the longest bone in the body
➡️ Answer: Femur -
What organ produces sound
➡️ Answer: Larynx or voice box -
What cells help blood to clot
➡️ Answer: Platelets -
What gas do humans breathe out
➡️ Answer: Carbon dioxide
⚗️ Chemistry, Physics, and Fun Facts (161–200)
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What is the smallest unit of an element
➡️ Answer: Atom -
What is a substance made of one type of atom
➡️ Answer: Element -
How many elements exist
➡️ Answer: Over 100 -
What chart organizes all elements
➡️ Answer: Periodic table -
What is the lightest element
➡️ Answer: Hydrogen -
What is table salt
➡️ Answer: Sodium chloride -
What is a substance of two or more elements combined
➡️ Answer: Compound -
What is a mixture that looks uniform
➡️ Answer: Solution -
What simple machine is a flat surface tilted
➡️ Answer: Inclined plane -
What simple machine uses a wheel and rope
➡️ Answer: Pulley -
What simple machine is two inclined planes back to back
➡️ Answer: Wedge -
What is energy in motion
➡️ Answer: Kinetic energy -
What is stored energy
➡️ Answer: Potential energy -
What heat transfer happens by touch
➡️ Answer: Conduction -
What heat transfer moves through fluids
➡️ Answer: Convection -
What heat transfer occurs through waves
➡️ Answer: Radiation -
What is the speed of light
➡️ Answer: About 300,000 km per second -
What is electricity
➡️ Answer: Flow of electric charge -
What allows electricity to flow easily
➡️ Answer: Conductor -
What resists electricity
➡️ Answer: Insulator -
What unit measures electric current
➡️ Answer: Ampere -
What unit measures electric potential
➡️ Answer: Volt -
What unit measures resistance
➡️ Answer: Ohm -
What is magnetism
➡️ Answer: Attraction or repulsion of certain metals -
What do opposite magnet poles do
➡️ Answer: Attract -
What do same poles do
➡️ Answer: Repel -
What is sound
➡️ Answer: Vibration -
What is a solid
➡️ Answer: Matter with fixed shape and volume -
What is a liquid
➡️ Answer: Matter with volume but no fixed shape -
What is a gas
➡️ Answer: Matter with no fixed shape or volume -
What is a force
➡️ Answer: A push or pull -
What happens to most substances when heated
➡️ Answer: They expand -
What happens when cooled
➡️ Answer: They contract -
What is the study of motion
➡️ Answer: Mechanics -
What substance is the universal solvent
➡️ Answer: Water -
What is the chemical formula for carbon dioxide
➡️ Answer: CO₂ -
What type of energy comes from the Sun
➡️ Answer: Solar energy -
What natural force keeps planets orbiting the Sun
➡️ Answer: Gravity -
What type of electricity builds up on surfaces
➡️ Answer: Static electricity -
What is the love of discovering how things work
➡️ Answer: Scientific curiosity
You made it through all 200 science trivia questions and answers, from atoms to galaxies and oceans to electricity. Keep exploring, keep asking questions, and keep the curiosity alive. FunAttic style!
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