| Term | Definition |
|---|
| science | the study of nature and the universe |
| universe | all that exists, including the planets, sun, stars, and space |
| galaxy | a very large group of stars that travel together through space |
| atom | the smallest part of a substance that can still be recognized as that substance |
| observation | the careful study of something |
| experiment | a kind of test that scientists use to discover or prove something |
| research | to study a subject, usually using books and doing experiments |
| technology | science discoveries and skills that are put to use |
| laser | a device that produces a narrow, strong beam of light |
| life science | the study of living things and how they behave |
| physical science | the study of matter and energy |
| earth science | the study of the Earth, including its rocks, oceans, air, and weather; also the study of the sun, moon, planets and stars |
| matter | anything that takes up space |
| energy | the ability of something or someone to do work or produce heat |
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