Scientific Method Steps
This is the first step of the scientific method.
Ask a Testable Question
The variable that is kept constant.
controlled variable
Observations can be divided into these two main types.
qualitative and quantitative
This type of question can be answered through an experiment or observation.
testable question
What are scientists looking for when analyzing data?
patterns, trends, relationships
In this step, scientists gather information before forming a hypothesis.
Do Background Research
This type of variable is manipulated by the scientist in an experiment.
independent variable
This type of observation describes characteristics.
qualitative
"How does the amount of sunlight affect the growth of a plant?" is an example of this type of question.
testable question
Why is it important to conduct research prior to an experiment?
Defining a Clear Hypothesis, Avoiding Errors, Understanding Variables
Which step of the scientific method is a way to test your hypothesis?
This type of variable is measured or observed in an experiment.
dependent variable
This type of observation involves measuring or counting.
quantitative
"Why does playing an instrument improve grades?" is an example of this type of question.
non-testable question
What is an educated guess or prediction based on what you think might happen in an experiment? What structure should it be written in?
Hypothesis.
"If... then..." statement.
Which step of the scientific method requires scientists to make sense of their findings?
analyze data
How many manipulated variables should an experiment have?
1
"The students averaged an 88% on the quiz" is an example of this type of observation.
quantitative
Nike is superior to all running shoes.
Can this be measured? Why or why not?
It cannot be measured because it is a subjective idea or opinion.
In the statement "A lack of sleep can make you gain weight," what is the independent variable?
amount of sleep or sleep loss
Which step of the scientific method requires scientists to decide whether their hypothesis was correct or not based on the data.
conclusion
In the experiment "Trout raised in cold water weigh more than trout raised in warm water," what is the dependent variable?
weight of trout
"Dogs are friendly, but protective animals" is an example of this type of observation.
qualitative
A good scientific question should be these three things.
specific, observable, and measurable
In the statement, "Fish oil in your diet will improve your memory," what is the dependent variable?
performance on memory tests