Scientific Method

Multiple Select

Which of the following are qualitative observations?

• 60 mL

• full glass

• mild flavor

• 10 hotness level

Open Ended

An experimenter adds this step into his procedure. "The person exercising will then drink gatorade". Can this step be repeated by all people identically? Why or why not?

Multiple Choice

In an experiment testing the absorbency of different brands of paper towels, what is the independent variable?

• the brand of paper towel

• the absorbency

Multiple Choice

A student notices that he scores better on quizzes when he gets more sleep. He decides to conduct an experiment to see how amount of sleep affects his test percentage on quizzes. What is the dependent variable?

• test percentages on quizzes

• amount of sleep at night

Open Ended

Think back to the paper towel experiment. A student decides to test Bounty paper towels versus Sparkle paper towels. What could be a possible control for this experiment? Hint: It cannot be no paper towel

Fill in the Blanks

Consider the experiment of how hours of sleep affect test percentage. What is a possible control?

Open Ended

Refer back to the paper towel experiment. What constants would you need? What would need to be the same about each group ( Bounty & Sparkle)?

Open Ended

Refer to the experiment of how hours of sleep affect test percentage. What would need to be constant in this experiment? Hint: Think about how you would do the experiment and what might affect your test percentage besides sleep