Parts of an experiment
Any Factor that can have one or more value
variable
a logical explanation of an observation made from prior knowledge
inference
a rule that describe a repeatable pattern in nature
Scientific Law
Molly thinks playing music to plants will increase their growth. She sets up an experiment where she plays music to 6 plants and she does not play music to 6 plants. She does this for 30 days. She records the height of all 12 plants in centimeters. Name the IV and the DV
IV - if the plants get music or not
DV - height of plants in cm
the factor you want to test
Independent variable
a possible explanation of an observation that can be tested by setting up an experiment
hypothesis
states that an event will occur
Scientific Law
Which window cleaner works best? Zack buys 3 brands of window cleaner and sets up an experiment to see which one leaves the least amount of streaks.
Name IV and DV
IV the brand of cleaner
DV the number of streaks left behind
the factor that you observe and measure
Dependant Variable
the results of using one or more of your senses
observation
True or false
A theory will eventually become a law
False, a theory will never become a law
Which window cleaner works best? Zack buys 3 brands of window cleaner and sets up and experiment to see which one leaves the least amount of streaks.
What are the constants in this experiment
the glass used for each test
the type of paper towel in each test
the amount of spray used for each test
the two groups in an experiment
Experimental group
Control group
the two words that need to be present when you make a hypothesis
If....then....
this is supported with many years of repeated test with the same result
Scientific Theory
What is an organized plan for gathering, organizing, and communicating information?
Scientific method
The factors of an experiment that do not change
constants
the part of the experiment that remains the same
the control group
Explains why something occurs
Scientific Theory
I make the statement "It rained because the grass is wet" Is this an observation or an inference?
An inference.