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Ch.1 Section 1 & 2

TermDefinition
hypothesis is a possible answer to a scientific question or explanation
parameter factor that can be measured in an experiment
manipulated variable one variable changed purposely
responding variable variable parameter to expected to change
scientific inquiry different ways to study the world
controlled variable manipulated at a time
data facts figures and other evidence
communicating ideas and conclusions
models picture, diagram, computer image
scientific theory a well tested explanation
scientific law a statement that describes whats going to happen
Si international system of units
Weight measure of the force of gravity on you
Mass the amount of matter an object has
estimate approximation based on reasonable assumptions
accuracy how close a measurement is to the true or actual value
reproducibility how close a group of measurements are to each other
significant figures measurements include all of the digits that have been measured
precision a measure of the exactness of a measurments
graph picture of your data
horizontal axis or x axis runs left to right
vertical axis or y axis runs up to down
origin where to axis cross
coordinate pair of numbers to position a point on a graph
data point intersection of a point
line of best fit line that reflects general pattern on a graph
linear graph data points yield a straight line
shape steepness of the graph line
non-linear graph data points fall along a straight line
Science the study of the natural world
observing using one or more senses to gather info
inferring when you explain your observations
predicting making a forecast of what will happen in the future based on what you already know
chemistry the study the properties of matter and how matter changes
physics the study oh matter energy motion and forces, and how they interact
Created by: daniel .m
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