Use these words to talk about experiments, nature, and the world of science.

🔍 Explore Science: 50 Key Terms for B1 Learners

an idea that explains something in science

something that can change in an experiment

a group used to compare results in an experiment

to look at something carefully to understand it

the study of how living things interact with nature

energy that comes from sources that won't run out (like sun or wind)

energy that comes from sources that will run out (like oil)

a fuel from old plants or animals (coal, oil, gas)

a gas made when people and animals breathe out or burn things

long-term change in the Earth’s weather

when gases trap heat in the Earth’s air

the code inside cells that carries genetic information

a living thing (plant, animal, or microbe)

a group of animals or plants that are the same

how living things slowly change over time

a change that helps a living thing survive

a tool that makes tiny things look bigger

when two or more things change each other

a mixture where something dissolves in liquid

a substance that can be slippery and taste bitter

a substance made from two or more elements