Mind-Bending Science Riddles for kids: To Test Your IQ
Get ready to put your scientific knowledge to the test! These brain-teasing riddles will make you think like a true scientist.
Riddle: I pull you down but keep the Moon up. What am I?
Answer: Gravity
Riddle: I beat all day but make no noise. What am I?
Answer: Heart
Riddle: I help plants make food with sunlight. What am I?
Answer: Photosynthesis
Riddle: I shine bright and planets circle me. What am I?
Answer: Star
Riddle: I have no mass but travel fast. What am I?
Answer: Light
Riddle: I’m a rock from space that glows in the sky. What am I?
Answer: Meteor
Riddle: I store data but have no brain. What am I?
Answer: Processor
Riddle: I’m gas plants breathe in. What am I?
Answer: Carbon dioxide
Riddle: I flow and take my container’s shape. What am I?
Answer: Liquid
Riddle: I oppose motion and slow things down. What am I?
Answer: Friction
Riddle: I heat food fast by accident. What am I?
Answer: Microwave
Riddle: I’m a tiny cell part giving orders. What am I?
Answer: Nucleus
Riddle: I carry oxygen in blood and make it red. What am I?
Answer: Hemoglobin
Riddle: I move around Earth, changing faces nightly. What am I?
Answer: Moon
Riddle: I see far and make stars closer. What am I?
Answer: Telescope
Riddle: I’m a metal liquid at room temp. What am I?
Answer: Mercury
Riddle: I bubble and fizz but I’m not alive. What am I?
Answer: Chemical reaction
Riddle: I’m tiny with protons and electrons. What am I?
Answer: Atom
Riddle: I’m in air and you breathe me most. What am I?
Answer: Nitrogen
Riddle: I react with water and bang. What am I?
Answer: Sodium
Riddle: I’m a force keeping planets in orbit. What am I?
Answer: Centripetal force
Riddle: I turn liquid to gas when boiled. What am I?
Answer: Evaporation
Riddle: I’m energy from moving electrons. What am I?
Answer: Electrical energy
Riddle: I’m rock from cooled lava. What am I?
Answer: Igneous rock
Riddle: I’m tiny and make yogurt or sickness. What am I?
Answer: Bacteria
Riddle: I’m a wave carrying sound. What am I?
Answer: Sound wave
Riddle: I turn gas to liquid like dew. What am I?
Answer: Condensation
Riddle: I push objects apart so balloons float. What am I?
Answer: Buoyancy
Riddle: I’m rock from squished sediment. What am I?
Answer: Sedimentary rock
Riddle: I turn liquid to solid when frozen. What am I?
Answer: Freezing
Riddle: I’m energy from atom movement. What am I?
Answer: Thermal energy
Riddle: I’m rock changed by heat and pressure. What am I?
Answer: Metamorphic rock
Riddle: I’m energy from the sun for panels. What am I?
Answer: Solar energy
Riddle: I hold energy but don’t move. What am I?
Answer: Battery
Riddle: I’m a gas animals breathe out. What am I?
Answer: Carbon dioxide
Riddle: I’m tiny and build life with DNA. What am I?
Answer: Cell
Riddle: I’m a star’s storm lasting centuries. What am I?
Answer: Jupiter’s Great Red Spot
Riddle: I’m the coldest spot near the Sun. What am I?
Answer: Moon’s south pole
Riddle: I’m a wandering planet with no star. What am I?
Answer: Rogue planet
Riddle: I make my own food but I’m not a plant. What am I?
Answer: Cyanobacterium
Riddle: I change species over time. What am I?
Answer: Evolution
Riddle: I learn with no brain. What am I?
Answer: Slime mold
Riddle: I’m older than dinosaurs and still here. What am I?
Answer: Horseshoe crab
Riddle: I’m in you but mostly not human. What am I?
Answer: Gut bacteria
Riddle: I’m a lens showing tiny worlds. What am I?
Answer: Microscope
Riddle: I’m a cosmic nursery for stars. What am I?
Answer: Nebula
Riddle: I split colors in light. What am I?
Answer: Prism
Riddle: I power cells inside you. What am I?
Answer: Mitochondrion
Riddle: I bend light where stars vanish. What am I?
Answer: Black hole
Riddle: I’m coiled in you with life’s code. What am I?
Answer: DNA
