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chapter 1

science the study of the natural world
observing means using one or more scenes to gather information
inferring making a inference
predicting making a forecast of what will happen in the future based on past experience or evidence
chemistry the study of properties of matter and how matter changes
physics the study of matter,energy,motion,and forces and how they interact
scientific inquiry refers to the different ways scientist study the natural world
hypothesis a possible answer to a scientific question or explanation for a set of observation
parameter a factor that can be measured in an experiment
manipulated variable variables that can change on purpose
responding variable is something that the experimenter purposely changes or varies over the course of the investigation.
controlled experiment a test where the person conducting the test only changes one variable at a time in order to isolate the results.
data “facts or pieces of information”
communicating share or exchange information, news, or ideas.
model physical mental visual and other representation of an idea to help people to understand a concept that they do not understand correctly
scientific theory a well tested explanation for a wide range of observation or experimental results.
scientific law is a statement that describes what scientist expect to happen every time under a particular set of conditions.
si for the french systeme international d'unites.
weight is a measure of the force of gravity on you
mass is a measure of the amount of matter on an object contains.
volume is the amount of space on an object's takes up.
menicies a cylinder curve
destiny is a mass per unit volume
celsius scale the temperature scale on which water freezes at 0 degrees and boils at 100 degrees
kelvin scale the temperature scale on which 0 is the temperature at which no more energy can be removed
absolute zero the temperature at which no more energy can be removed from matter
estimate an approximation of a number based on reasonable assumptions
accuracy how close a measurement is to the true or accepted value
reproducibility how close a group of measurements are to each other
scientific figures all the digits in a measurements that have measured exactly plus one digits whose value has been estimated
precian how close a group of measurements are to each other
graph a picture of information from data table;shows the relationship between variables
horizontal axis a line that runs left to right along the bottom of the graph on which the manipulated variable or independent variable is labeled
origin the (0,0) point on a line graph;where the x-axis and y-axis cross on a graph
coordinate a pair of numbers used to determine the position of a point on a graph
data port a point on a graph showing the location of a piece of data
line of best fit a smooth line that reflects the general patterns in a line graph
linear graph a line graph in which the data point yield a straight line
Created by: BAELOVER