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6th Grade Science

6th Grade Science Vocabulary

TermDefinition
Science The systematic study of natural events and conditions
Pseudoscience A belief or practice that is based on incorrectly applied scientific methods
Prediction A statement about what may happen in the future based on prior experience of knowledge
Experiment An organized procedure to study something under controlled conditions
Observation The process of obtaining information by using the senses (taste, touch, smell, sight, hearing)
Hypothesis A testable idea or explanation that leads to scientific investigation (educated guess)
Conclusion A decision made after considering relevant facts and evidence
Independent Variable The factor in an experiment that is changed by the scientist
Dependent Variable The factor in an experiment that changes as a result of a change of an independent variable
Data Information gathered by observation or experimentation
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
Created by: SSC