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Science Test Ch. 1/

Test for Chapter 1Section 1-4

QuestionAnswer
An organized set of investigation procedures scientific method
a possible explanation for a problem using what you know and what you observe hypothesis
to test the effect of one thing on another using controlled conditions experiment
a quantity that can have more than a single value variable
value changes according to the changes in other variables dependent variable
the variable you change to see how it will affect the dependent variable independent variable
a factor that does not change when other variables change constant
the standard by which the test results can be compared control
occurs when what the scientist expects changes how the results are viewed bias
represents an idea, event, or object to help people better understand it model
an explanation of things or events based on knowledge gained from many observations and investigations theory
statement about what happens in nature and that seems to be true all the time scientific law
the application of science to help people technology
an exact quantity that people agree to use to compare measurements standard
a standard which is universally accepted and understood by scientists SI
the amount of space occupied by an object volume
a measurement of the quantity of matter in an object mass
the mass per unit volume of a material density
a visual display of information or data graph
What do you have to do to learn about events in nature? observe and investigate
what must we do to learn about the natural world? ask questions
what does science deal with? life, earth, physical science
what happens as you learn more? your answers become more accurate
what can you do to learn more? investigate observe experiment create a model
what are the steps of the scientific method question hypothesis procedures results/data conclusion next question
valid experiments: must have data that is measurable must be repeatable
why is a control needed in an experiment? so the results can be compared
why is density a derived unit? it has 2 units of measure
what type of variable is plotted on x-axis? y-axis? dependent independent
why are the points in a line graph connected? the data is related
K>C -273
C>K +273
what is the multiplying factor of kilo____ 1,000
what is the multiplying factor of deci_____ .1
what is the multiplying factor of cent___ .01
what is the multiplying factor of milli___ .001
what is the multiplying factor of micro___ .000 001
what is the multiplying factor of nano____ .000 000 001
what is the SI unit for TIME? second
What is the SI unit for TEMPERATURE? Kelvin
What power is SI units written in? 10
Created by: missyprissi96
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