science

Science,, we had to plan the experiment on how certain variables can change your heart rate.
Test One~
Variable: If I am thinking of him.
Hypothesis: When Dorothy is thinking of him, her heart rate would increase slightly.
Test Two~
Variable: If I am looking at him.
Hypothesis: When Dorothy is looking at him, her heart rate would increase quite a lot.
Test Three~
Variable: Who is measuring the pulse.
Hypothesis: If he is the one measuring her pulse, her heart rate would increase significantly.