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# Ch 1.1 - 1.5 Vocab

### Ch 1.1 Vocab

TermDefinition
Science Study the natural world
Observing Use senses to get info
Inferring Explain observations
Predicting Make forcast what will be in the future based on past
Chemistry Study of matter + how it changes
Physics Study of matter energy, motion, forces + how they interact
Scientific inquiry Refers to the different ways scientists study the natural world
Parameter Factor that can be measured
Manipulated variable Purposely changed
Responding variable Responds to manipulated
Controlled expirement Parameter is manipulated
Data Facts, figures, and other evidence
Communicating Share into about experiment w/ others
Models Picture or image of object or process
Theories Well tested explanation
Law Rule of nature (Law of gravity)
SI Expanded metric system called International System of Units
Weight Measure of force of gravity on you
Mass Measure of the amount of water
Volume Amount of space and object takes
Meniscus The curved upper surface of a liquid in a column of liquid
Length Distance from one point to another
Accuracy How close a measurement
Reproducibility How close a group of measurements are to each other
Significant Figures Measurements include all of the digits that have been measured exactly, plus one digit whose value has been estimated
Precision Measure of the exactness of a measurement
Horizontal axis Graph line that runs left to right
Vertical axis Graph line that runs up and down
Origin Has coordinates of (0,0)
Coordinate Pair of #'s used to determine the position of a point on a graph
Data point The point showing the location of that intersection
Line of best fit Smooth line that reflects the general pattern of a graph
Linear graph In which the data points yield a straight line
Slope Steepness of the graph line
Nonlinear graph In which the data points do not fall along in a straight line
Estimate Approximation of a # based on reasonable assumptions
Created by: caguilar616889