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Measurement/Graphing

QuestionAnswer
Qualitative use description words
Qualitative collect data in words, and images
Quantitative collect data in numbers
Quantitative very exact
SI international system of measurement
SI based on units of 10
length base unit-meter (m)
Mass base unit is gram (g)
mass amount of matter an object contains
gravity what gives mass weight
mass related to weight
volume amount of space something occupies
volume base unit -cm3-solid
True objects can have the same amount of volume but have different amounts of mass
volume equation for a solid length x width x height
meniscus curve at bottom of liquid in graduated cyclinder
meniscus caused by water molecules sticking to sides of cylinder
What is the tool used to measure length? metric ruler
What is the unit used in length? meter
What is the tool used to measure mass? balance
What is the unit used in mass? gram
What is the tool to measure temperature? thermometer
What is the unit used in temperature? Kelvin
What tool is used to measure volume? graduated cylinder
What unit is used in volume? cubic centimeter or liter
What is used to measure time? stopwatch
What unit is used in time? seconds
Graphs are used to: "see" relationships among data from experiments
directly porportional graph as one variable increases so does the other one
inversely proportional graph as one relationship increases the other decreases
circle graph best for showing percentages
bar graph best for showing changes in one thing over time
line graph best for showing the relationship between 2 changing variables
The X axis goes on the ____________ axis horizontal
The Y axis goes on the ______ axis vertical
The independent variable goes on the ____ axis X
The dependent variable goes on the _____ axis Y
When you create the scale for your X and Y axis the increments must be in even amounts True
volume base unit for liquid-liter-L
hypothesis a possible explanation or an answer to a question.
prediction an if-then statement
prediction states the results of an experiement in advance
independent variable what is changed in an experiment
dependent variable what changes due to the independent variable
Created by: rfabish
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