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# PS Chapter 1

### 29 vocab words

TermDefinition
Science Is a way of learning about the natural world.
Observing using one or more of your senses to gather information.
Inferring When interpreting things you observe
Predicting making a forecast on what will happen in the future
Chemistry study of properties of matter and how matter changes
Physics study of matter and energy and how they interact
Scientific inquiry the diverse ways in which scientists study the natural world and propose explanations based on evidence they gather
Hypothesis a possible explanation for a set of observations or answer to a scientific question
Parameter any factor that can be measured in an experiment
Manipulated variable the variable that is purposely changed to test a hypothesis
Responding variable the factor that is expected to change in response to the manipulated variable
Controlled variable an experiment that only one variable is controlled at a time
Data facts,figures,and other evidence gathered through observations
Communicating the sharing of ideas and experimental findings with others through writing or speaking
Model picture,diagram,computer image,or other representations of an object of process
Scientific theory a well tested explanation for a wide range of observations or results
Scientific law a statement that describes what scientists expect to happen every time under a particular set of conditions
Qualitative not using numbers it uses notes
Quantitative using numbers in the data
Graph a “picture“ of your data
Horizontal axis the x axis that runs left to right on the bottom of the graph
Origin the point where the x and y axis both meet or (0,0)
Coordinate a pair of numbers to determine the position of a point on a graph
Data point point showing the location of the intersection
Line of best fit a smooth line that goes from the start to the finish on the graph
Linear graph a graph in which the data points yield in a straight line
Slope the steepness of the graph line
Nonlinear graph a line in which the data points do not fall along a straight line
Created by: lhgonzal