Scientific Method & Variables
The group that is changed or manipulated in an experiment
What is experimental group?
The phrasing "if... then" is used during this step in the scientific method.
What is the hypothesis?
Mrs Gill has 2 plants. She wants to see if water makes the plant grow. She waters one plant and does not water the other plant. What is the independent variable.
The water
The independent variable for the following experiment: How does the amount of juice you drink affect the number of cavities in your teeth?
What is the amount of juice?
Your hypothesis should have these two works.
What are "IF" and "THEN"
This is the first step of the scientific method.
What is Question or Problem?
This is the variable in the experiment the scientist changes.
What is independent variable?
The dependent variable for the following experiment: How does the amount of juice you drink affect the number of cavities in your teeth?
What is the number of cavities?
The summary of an experiment is called the _____ (last step in the scientific method)
conclusion
This is data that uses numbers
What is quaNtitative?
The variable that is measured.
What is a dependent variable?
A constant variable for the following experiment: Does the amount of toothpaste you use decrease the number of cavities in your mouth?
What is how often you brush your teeth?
What is the brand of toothpaste?
The group that is left alone in an experiment
control group
This step includes telling if your hypothesis was incorrect or correct.
What is the conclusion?
The variable that stays the same.
Independent. Control. Dependent
What is control variable?
The dependent & independent variables for the following experiment: Are headaches cured faster with liquid-filled pills or with solid pills?
D - What is the time for a headache to be cured?
I - What is the type of pill (liquid-filled or solid)?
This is what scientists use to learn about and study the world around them.
What is the scientific method?
All scientists create a ___________ with steps to follow before they conduct their experiment.
What is a procedure?
Scientists change the __________ variable during their and collect data from the _________ variable.
What is independent & dependent?
The independent, dependent & constant variable for the following experiment: Does adding salt to fresh water affect how fast it freezes?
I - What is the amount of salt?
D - What is the time it takes for the water to freeze?
C - What are the amount of water and the temperature?