Scientific method 9

Step 1:  What question do you want answered?

• problem
• hypothesis
• variables
• procedure

Step 2:  What do you think will happen?

• problem
• variables
• data
• hypothesis

Step 3:  What will you change and what will you keep the same?  

• procedure
• data
• variables
• problem

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

• dependent variable
• independent variable
• data
• control group

Mr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp.  Identify the independent variable.

• distance traveled by the ball
• height of the ramp
• mass of the ball
• weight of the ball

Mrs. S wants to see if the type of fertilizer affects the height of a sunflower plant. What is the dependent variable?

• type of fertilizer

• height of the sunflower plant

• amount of fertilizer

• health of the sunflower plant

Which of the following is the best option for a hypothesis?

• If I wash my hands, I will be less likely to get sick

• If I get sick, I should wash my hands more

• If I wash my hands twice a day, then I will take less days off from work in a given year.

• If I wash my hands, then I will feel better

Which of the following is an example of qualitative data?

• the color of the fur of an animal
• the mating behavior of an animal
• the average number of offspring that an organism has
• number of nose hairs

What is independent variable?

• the variable that you purposely manipulate
• the variable that is being observed
• the variable that is not changed.

What is the first step in completing the scientific method?

• project experimentation
• analysis
• conclusion
• research