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6th Grade Science
6th Grade Science Vocabulary
Term | Definition |
---|---|
Biotic Factor | An Interaction that involves a living or one living organism |
Abiotic Factor | A nonliving part of an environment |
Population | A group of individuals of the same species that live in the same place at the same time |
Species | Organisms that are closely related and can mate to produce fertile offspring |
Community | All the populations of soecies that live in the same habitat and interact with each other |
Ecosystem | A community of organisms and their nonliving environment |
Producer | An organism that can make its own food |
Decomposer | An organism that gets energy and mutrients by breaking gown the remains of other organisms |
Consumer | An organism that eats other organisms |
Food Chain | The path of energy transfer from producers to consumers |
Food Web | A diagram that shows the feeding relationships between organisms in a ecosystem |
Carrying Capacity | The largest population that an invironment can support |
Predator | An organism that kills and eats another organism |
Prey | An animal that is killed and eaten by another animal |
Symbiosis | A relationship in which two different organisms live in close association with each other |
Mutualism | A relationship between two species in which both species benefit |
Commensalism | A relationship between two species in which one species benefits and the other is unaffected |
Parasitism | A relationship between two species in which one species benefits and the other species is harmed |
Renewable Resource | A natural resource that can be replaced at the same rate at which the resources is consumed |
Nonrenewable Resource | A resource that forms at a rate that is much slower than rate at which the resource is consumed |
Solar System | The sun and all of the bodies that orbit the sun |
Terrestrial Planets | The four small, dense, rocky planets that orbit closest to the sun (inner planets) |
Astronomical Unit | The average distance between Earth and the Sun |
Gas Giant | A large planet that has a deep, massive atmosphere (outer planet) |
Comet | A small body of ice, rock and dust follows an elliptical orbit around the sun |
Asteroid | Small, irregularly shaped, rocky object that orbits the sun |
Meteoroid | A relatively small rocky body that travels through space |
Meteor | A bright streak of light that results when a meteoroid burns up in Earth's atmosphere |
Meteorite | A meteoroid that reaches Earth's surface without burning up |
Rotation | The spinning of an object, such as a planet, on its axis |
Revolution | The motion of one body around another, like Earth's orbit around the sun |
Axis | A line through an object around which it rotates |
Day | The time is takes a planet to make one full revolution on its axis |
Year | The time it takes a planet to make one full revolution |
season | A division of the yeart that is characterized by temperature and other weather trends |
Lunar (moon) Phases | The different appearances of the moon |
Eclipse | An event in which the shadow of one celestial body falls on another |
Tide | Daily changes in the level of ocean water |
Position | Describes the location of an object |
Motion | A change in a object's position over time |
Speed | Measure of how far something moves in a given amount of time |
Velocity | The speed of an object in a particular direction |
Acceleration | The rate at which velocity changes over time |
Force | A push or pull exerted on an object |
Balanced Forces | Two or more forces that act upon an object and result in no change in motion |
Unbalanced Forces | Two or more forces resulting in a change in an object's motion |
Net Forces | The combination of all the forces acting on an object |
Inertia | The tendency of all objects to resist a change in motion |
Gravity | A force of attraction between objects due to their mass |
Orbit | The path that a body follows as it travels around another body in space |