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Chapter 1
Introduction to Science
15
Science
10th Grade
08/23/2007

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Term
science
Definition
a system of knowledge based on facts or principles
Term
technology
Definition
the application of science to meet human needs
Term
scientific theory
Definition
a tested, possible explanation of a natural event
Term
scientific law
Definition
a summary of an observed natural event
Term
critical thinking
Definition
applying logic and reason to obervations and conclusions
Term
scientific method
Definition
a series of logical steps to follow in order to solve problems
Term
variable
Definition
anything that can change in an experiment
Term
length
Definition
the straight-line distance between any two points
Term
mass
Definition
a measure of the quantity of matter in an object
Term
volume
Definition
a measure of space, such as the capacity of a container
Term
weight
Definition
the force with which gravity pulls on a quantity of matter
Term
scientific notation
Definition
a value written as a simple number multiplied by a power of 10
Term
precision
Definition
the degree of exactness of a measurement
Term
significant figures
Definition
the digits in a measurement that are known with certainty
Term
accuracy
Definition
the extent to which a measurement approaches the true value
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