1.3 Experimental Design Flashcards
What is a hypothesis?
An idea that is tested through research.
What is the 1st step to writing a hypothesis?
Come up with a reason.
What is the 2nd step to writing a hypothesis?
Write a testable statement.
What is an independent variable?
The variable in an experiment that changes.
What is a dependent variable?
The variable that shows the results.
What is a control group?
A group of that stays the same.
Why are control groups important?
They show the data how it is normally.
What is a good control group?
How things are right now.
What are error bars?
Bars that show the error in a set of data.
In an experiment about how sunlight affects plants, what is a good independent variable?
How much sunlight a plant gets.
Is this a good hypothesis: The amount of flies will go up?
No
If one error bar goes from 17-21 and the other goes from 15-19, are the sets of data different?
No
