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25 Cards in this Set

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What is...Science?
A process of understanding the world where information is gained.
Technology
The application of information to make living easy.
Chemistry
The study of the composition, structure, properties, & reactions of matter.
Physics
The study of matter & energy, & the interactions between the two through forces & motion.
Geology
The study of the origin, history, & structure of earth.
Astronomy
The study of the universe beyond earth.
Biology
The study of life & it's processes.
Scientific Method
An organized plan used for gathering, organizing, & communicating information.
Observation
The information obtained through the senses.
Hypothesis
A proposed answer to a question.
Manipulated Variable
The variable that causes a change in another variable.
Responding Variable
A variable that changes in response to a change in the manipulated variable.
Controlled Experiment
An experiment in which only one variable, the manipulated variable, is deliberately changed at one time.
Scientific Theory
A well-tested explantation for a set of observations or experimental results.
Scientific Law
A statement that summeriees a pattern found in nature.
Model
A representation of an object or event.
Scientific Notation
A way of expressing a value as the product of a number between 1-10 & a power of 10.
Conversion Factor
A ratio of equal measurements that is used to convent a quanity from one unit to another.
Precision
A gauge of how exact a measurement is.
Significant Figures
All the digits in a measurements that are directly measured, plus the last digit, which is estimated.
Accuracy
The closeness of a measurement to the true value of what is measured.
Thermometer
An instrument that measures temperature.
Slope
The steepness of a line, equal to a ratio of a vertical change to the corresponding horizontal change.
Direct Proportion
A realtionship between two variables in which their ratio is constant.
Inverse Proportion
A relationship in which the product of two variables is a constant whenall other variables are held constant.