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5th grade science
| Term | Definition |
|---|---|
| Acceleration | The rate at which velocity is changing. The change may involve an increase or decrease in speed and/or a change in direction. The change may be positive or negative. |
| Allele | Any of two or more alternate forms of a gene that an organism may have for a particular trait. |
| Amplitude | The maximum absolute variation of any periodic function (e.g., a wave). |
| Astronomical unit | A unit used to measure distances in the Solar System equal to the average distance between the Sun and Earth, approximately 150 million kilometers, and abbreviated AU |
| Autotroph | An organism that can produce food from inorganic materials (e.g., carbon dioxide, sunlight, water). |
| Binary fission | An asexual reproductive process in which a single cell divides into two cells |
| Binomial nomenclature | A system used to name organisms using two words: the genus name and the species name. |
| Boiling point | The temperature at which a liquid changes to a gas. The boiling point of water at sea level is 100°C (212°F). |
| Budding | An asexual reproductive process in which an outgrowth of a parent organism detaches and forms a new individual of the same species. |
| Chemical properties | Characteristics of substances that describe their composition, reactivity, and how the substance changes into different substances. |
| Dominant | The form of a trait that is expressed or shown when the combination of alleles for this trait is heterozygous. |
| Dwarf planet | A celestial body similar to a planet but orbiting in a zone that has many other objects in it (e.g., Ceres, Pluto). |