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ch 1 section 1.1 - 1.2

science the study of the natural world through obsrvations and logical reasoning; leadsto a body of knowledge
observing the process of using one or more of your senes to gather information
inferring the process of making an interpretation based on observations prior knowledge
predicting the process of forecasting what will happen in the future based on past experience
chemistry the study of the properties of matterand how matter changes
physics the study of matter, energy, motion, and froces, how theyinteract
scientfic inquiry the ongoing process of discovery in science
hypothesis a possible explanantion fora set of observation or answer to a scientific question
parameter afactor that can be measured in an experiment
manipulate varibale the one variable parameter that a scientist changes during an experiment
responding variable the variable parameter that changs as a result of chages
communiting share into about experiments with others
model picture or image of object or process
scientific theory well tested explanation
scientific law rule of nature
SI International System Units
weight measure force of gravity
mass the amount of matter an object has
volume the amount of space an object takes up
menicus a curved cylinder
lenght the amount of distance between to places
accuracy how close measurement is to true value
reproducibility close a group measurements are to each other
significant figures measurements include all of digits that have been measured exactly
precision measure of the exactness of measurement
graph picture of graphs
orign (0,0) where x and y cross
coordinate pair numbers determine the position of a point on graph
data point point showing locations of intersection
line of best fit smooth line reflects the general pattern of graph
linear graph a line graphin which data points yeild a straight line
slope steepness of grap line
linear graph line graph that the data points falls into a straight line
non-linear graph line graph that data points don't fall into a straight line
kilo- 1000
hecto- 100
deka- 10
deci- 0.1
centi- 0.01
mlli- 0.001