Scientific Method

What step does every scientific experiment begin with?

• hypothesis

• question/problem

• background research

• conclusion

What is a hypothesis?

• An educated prediction or answer to a testable question

• A random guess

• An observation based on feelings or emotions

• 

This variable in an experiment is the one being changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

Dependent variable means

• the scientist controls what to test
• educated guess
• ask a question
• what is being measured

If you increase the amount of spinach you eat, then you will increase the iron in your blood. 
What's the dependent variable?

• increase the amount of iron in your blood
• spinach you eat

If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?

• True
• How fast you get to school
• Riding a bike or walking
• False

If I study for my scientific method test, then I will have a better test score. What is the dependent variable?

• Scientific Method
• Studying
• Independent variable
• Test score

If I read this question carefully, then I will answer it correctly. What is the independent variable?

• I hope so
• Yes
• Reading or not reading carefully
• Likelihood of a correct answer

This is the group that we will compare our experimental group to. This group stays "normal."

• Control Group
• Experimental Group
•  Normal Group
• Weird Group

In a controlled experiment, how many variables can be worked with at a time? 

• one
• none
• two or more
• how ever many makes sense.