1.3 Flashcards
What is an error bar?
An error bar helps you analysis data with your eyes based on a graph.
When should you use a bar graph?
If your independent variable is grouped or categorized.
When should you use a line graph?
If your independent variable is quantified or related to time.
What does a large error bar mean?
Lots of possible error
If the error bars cross…
Then there is error
If the error bars don’t cross…
Then there is not much error
What is the first step for a scientific hypothesis?
Come up with a specific reason that explains the phenomena
What is the second step for a scientific hypothesis?
Write a testable statement
What is the template for the scientific hypothesis
The <phenomenon, topic> (is due to, is caused by, depends on) <specific></specific>
What is a control group?
Standard to which comparisons are made in an experiment.
Why is a control group important?
It helps you see if your independent and dependent variables are working/valid
What is an example of a good control group?
A group where you don’t change anything
