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Chapter 2: Measurement
vocabulary for chapter 2
17
Science
7th Grade
09/18/2012

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Term
measurement
Definition
a way to describe the world with numbers.
Term
estimation
Definition
helps make a rough measurement of an object.
Term
precision
Definition
how close measurements are to each other.
Term
accuracy
Definition
compares a measurement to the true value.
Term
SI
Definition

International System of Units

 

Provides a worldwide standard of physical measurements.

Term
meter (m)
Definition
the SI unit of length
Term
volume
Definition
the amount of space an object takes up.
Term
mass
Definition
the amount of matter in an object
Term
kilogram (kg)
Definition
SI unit for mass
Term
weight
Definition

meaurement of force

SI unit is newton (N)

Term
kelvin (K)
Definition
SI unit of temperature
Term
rate
Definition

the amount of change of one measurement n a given amount of time.

 

speed=miles in an hour

 

 

Term
table
Definition
displays information in rows and columns
Term
graph
Definition
collects, organizes, and summarizes data in a visual way.
Term
line graph
Definition
shows the relationship between two variables
Term
bar graph
Definition
show the relationships among variables using blocks or bars
Term
circle graph
Definition

shows parts of a whole

 

shows fractions or percentages of a whole

 

pie graph

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