For elementary learners: key science concepts and vocabulary used in school experiments, nature, and everyday natural life.
Free Science & Discovery vocabulary flashcards at the A2 level — all 35 words with definitions and examples. Study them with spaced repetition and start using these words in everyday conversation.
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experiment
a test you do to find out if something is true or how something works
discover
to find or learn something for the first time
energy
the power needed to do work or make things move
melt
to change from a solid into a liquid because of heat
freeze
to change from a liquid into a solid because of cold
gravity
the force that pulls objects toward the center of the Earth
planet
a large round object in space that moves around a star
chemical
a substance made by or used in chemistry
battery
a small device that stores electrical energy for use in machines
pressure
the force that pushes on a surface per unit of area
temperature
a measure of how hot or cold something is
electric
relating to or powered by electricity
orbit
the curved path one object takes around another in space
microscope
an instrument that makes very small objects look much bigger
fossil
the preserved remains or shape of an ancient plant or animal found in rock
observe
to watch something carefully to learn more about it
predict
to say what you think will happen before it happens
magnet
an object that attracts iron and steel and has a north and south pole
force
a push or pull that changes how an object moves or is shaped
habitat
the natural environment where a plant or animal normally lives
oxygen
a gas in the air that all animals and humans need to breathe and survive
circuit
a closed loop that electricity can flow around to power devices
evaporate
to change from a liquid into a gas or vapour
reflect
to send light, heat, or sound back from a surface
absorb
to take in or soak up liquid, heat, or light
vibrate
to move back and forth very quickly
reproduce
to produce young or new versions of itself
mineral
a natural solid substance found in the earth, not made by plants or animals
wave
a movement of energy through air, water, or another substance
species
a group of animals or plants that are similar and can breed together
nutrition
the process of getting the right food to stay healthy and grow
shadow
a dark area made when an object blocks a light source
condense
to change from a gas into a liquid
current
the flow of electricity through a conductor or water moving in one direction
friction
the force that slows down objects when they rub against each other