Scientific Method Review

A constant variable is...

• Something I can change
• The thing affected by my change
• The thing in my experiment that must stay the same
• The procedures

There are two types of data. Which type of data involves descriptions that cannot be counted or measured?

• qualitative
• quantitative

A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?

• heart rate
• type of exercise
• amount of exercise
• time of day exercise occurs

Data that are qualitative are always-

• described in words
• represented in numbers
• repeated for verification
• the most accurate type of data

"The insect in Container B has six appendages" is an example of what type of scientific observation?

• quanitative
• qualitative
• inference
• hypothesis

The variable that is measured in the experiment is-

• the dependent variable
• the independent variable
• the control variable
• the hypothetical variable

A hypothesis is a statement that-

• can be tested
• is almost always true
• is almost always false
• is the same as a theory

Which type of observation? "The cat has orange fur on his ears."

• Qualitative

• Quantitative

A student wants to test the effects of type of exercise on heart rate.  What is the independent variable?

• type of exercise
• heart rate
• amount of time exercise occurs
• gender of person that exercises

How many variables can be tested in a controlled experiment?

• one
• two
• three
• as many as possible