Chapter 1 & 2 Flashcard Example #58635

Science
a way of learning about the natural world. It is a process used to investigate the world around you.
Scientific Theory
an explanation or model for repeatedly observed events in nature
Scientific Law
a rule that describes a pattern with no explanation in nature
hypothesis
a reasonable and educated guess
conclusion
tells you what your results mean
independent variable
the part of the experiment that YOU change
dependent variable
does change because of the experiment, this is what you measure
constants
variables or parts of the experiment that are kept the same
control
the normal way things are done, what we compare our experiment to
International System of Units
was established to help with sharing of measurement data among people from every country, based on multiples of 10
length
measured in meters
volume
the amount of space something takes up or occupies
mass
the amount of matter in an object
weight
a measure of force
temperature
measured in Fahrenheit (F), Celsius (C), or Kelvin (K)
absolute zero
the coldest possible temperature
time
the metric unit of measurement is seconds
tables
are better than a paragraph because the way the material is organized is easier to understand
graphs
collects, organizes, and summarizes data in a visual way
line graphs
shows the relationship between 2 variables that must be numbers
bar graph
shows relationship between one set of numbers and something divided into parts
circle graph
shows parts of a whole as percentages

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