Science vocabulary and spelling words for kids

READY-TO-USE RESOURCE

20 essential science vocabulary words

Start with these useful science terms and concise definitions, then print the page as a study sheet or turn the words into an online game.

1. atomThe smallest unit of an element that keeps its chemical properties.
2. cellThe smallest structural unit of a living organism.
3. condensationThe change from a gas into a liquid.
4. ecosystemLiving things and their physical environment interacting together.
5. energyThe ability to do work or cause change.
6. evaporationThe change from a liquid into a gas.
7. experimentA controlled test used to answer a question.
8. forceA push or pull that can change motion.
9. frictionA force that resists motion between touching surfaces.
10. gravityThe force that attracts objects toward one another.
11. habitatThe natural home of an organism.
12. hypothesisA testable explanation for an observation.
13. magnetismA force that attracts or repels certain materials.
14. matterAnything that has mass and takes up space.
15. moleculeTwo or more atoms chemically joined together.
16. observationInformation gathered using the senses or tools.
17. organismAn individual living thing.
18. photosynthesisThe process plants use to make food from light.
19. temperatureA measure of how hot or cold something is.
20. velocitySpeed in a particular direction.

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