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Chapter 2 Owen Heitzig
Works of Scientists Owen Heitzig
15
Science
7th Grade
10/01/2018

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Term
Metric System
Definition
A system of Measurement based on the Number 10.
Term
SI
Definition
To measure length, volume, mass, density, temperature, and time.
Term
Mass
Definition
A measurement of the amount of matter of an Object Contains/
Term
Weight
Definition
A measure of the force of gravity acting on an object.
Term
Volume
Definition
Is the amount of space an object takes up.
Term
Meniscus
Definition
To determine the volume of water, you should read the milliliter marking at the bottom.
Term
Density
Definition
To measure how much volume contained in a given volume.
Term
Estimate
Definition
Is an approximation of a number based on reasonable assumptions.
Term
Accuracy
Definition
Refers to how close a measurement is to the true or the accepted value.
Term
Precision
Definition
Refers to how close a group of measurements is to each other.
Term
Significant Figures
Definition
Refers to the digits in a measurement.
Term
Percent error
Definition
Calculations are used to determine how accurate, or close to the true value, an experimental value relly is.
Term
Mean
Definition
Calculated by adding up all of the numbers and then dividing by the total numbers of it's of items in the list.
Term
Midian
Definition
The middle number in a set of data, to find the middle number.
Term
Mode
Definition
Is the number that appears most often in a list of numbers.
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