The variables/factors that stay the same in the experiment
Control
The variable/factor that is being measured in the experiment
Dependent Variable
True or False:
You should listen to your teacher for only the first step of the experiment.
False
A process of learning that begins with a hypothesis and proceeds to prove or change the hypothesis by comparing it with scientific evidence
Scientific Method
What is the control in this experiment?
The amount of pollution produced by cars was measured for cars using gasoline containing different amounts of lead.
Cars
The variable/factor that is purposely changed in an experiment
Independent Variable
Any factor that can be manipulated, controlled, or measured in an experiment.
Variable
True or False:
You can use a cracked or broken glass beaker in an experiment.
False
What is the first step of the Scientific Method?
Observation
What is the dependent variable in this experiment?
The amount of pollution produced by cars was measured for cars using gasoline containing different amounts of lead.
Amount of Pollution
A scientific explanation supported by a lot of evidence collected over a long period of time
*explanation based on evidence
Theory
A possible explanation that can be tested by comparison with scientific evidence
*thought based on inferences that can be tested
Hypothesis
True or False:
You should tie back hair or loose clothing.
True
Which step of the Scientific Method do you make an educated guess on what you think may happen?
Hypothesis
What is the independent variable in this experiment?
The amount of pollution produced by cars was measured for cars using gasoline containing different amounts of lead.
Different types of gasoline
*same results when experiment is conducted over and over again
repeatable
Answers questions
Deduce
True or False:
You should always tell a teacher when there is a problem or unsafe condition.
True
Quantitative and Qualitative
How many variables should change in an experiment?
(1, 2, 3, or none)
One
The set of rules that are obeyed by every detail of everything that occurs in the universe
Natural Laws
asks questions
Inquiry
After your experiment is over what should you do?
Clean up or put materials away
What is the last step in the Scientific Method?
Draw Conclusions
List the dependent, independent, and control for this experiment:
Students measured the temperature of the water at different depths in Lake Erie and found that the temperature changed.
Dependent: temperature
Independent: depths of water
Control: Lake Erie