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Reagle - Sec. 4
Vocabulary
28
Science
7th Grade
09/25/2007

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Term
Life Science
Definition
The study of anything that is or once was living
Term
Chemistry
Definition
studies the properties of matter
Term
Physical Science
Definition
the study of motion and force
Term
Earth Science
Definition
the study of the processes of the planet and space
Term
SI system
Definition
International System of Units - the modern version of the old Metric System
Term
length
Definition
a measurement from here to there
unit is Meter
measured by a meter stick
Term
mass
Definition
the measurement of the amount of matter in an object
unit is Kilogram (grams are too small to be useful)
Use a balance to measure
Term
weight
Definition
a measure of how gravity affects mass
unit is Newton
measured by a scale
Term
area
Definition
the amount of flat space inside a set of boundaries
to measure you have to combine two units of length
measured using a meter stick
Area = (Length x width units squared
Term
Volume
Definition
the amount of 3D space an object takes up
solids:combine 3 units of length
liquids: use liters
liquids you would use a flask, beaker or graduated cylinder
Term
Temperature
Definition
a measurement of how fast atoms are moving; or in general, how hot or cold something is
measured in degrees; use a thermometer
Water boils at 100 degrees C
Water freezes at 0 degrees C
Term
meter
Definition
a measure of distance that is 100 centimeters long, the standard for the Metric system and SI system of measurement
Term
Liter
Definition
SI unit used for measuring volume of a liquid
Term
Gram
Definition
a standard unit of measurement for mass; usually kilogram is the standard as a gram is too tiny to be useful.
a gram is 1000 grams
Term
Degree
Definition
unit that measures temperature
Term
Balance
Definition
a tool that uses kilograms to find the mass of an object
Term
scale
Definition
a scale is a tool used to measure how gravity affects mass
Term
graduated cylinder
Definition
[image]
Term
flask
Definition
[image]
Term
beaker
Definition
[image]
Term
meniscus
Definition
[image]
Term
Mean
Definition
add up all the data and divide by the number of data entries
Term
Median
Definition
line up all the data in numerical order and pick the number in the very center
Term
Mode
Definition
the data entry that appears the most often
Term
cubit
Definition
length of a person's forearm (earliest known measurement)
Term
English System
Definition
the system of measurement used most often in the United States (except by Scientists). Uses feet, inches, pounds, quarts, etc.
Term
absolute zero
Definition
a theoretical temperature where atoms STOP moving. No one has been able to reach it.
Term
Thermometer
Definition
a tool used to measure temperature
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