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what is the control of my project 20 points reward!!?
Im doing an experiment where i check peoples pulse then give them coffee or diet pepsi depending on their age and then check their pulse rate again. oh and im checking their pulse rate using a stethoscope
and what is the experimental variable also!
i think u misunderstood. im giving the pop to kids bc they cant drink coffee and im giving the coffee to adults
2 Answers
- ?Lv 51 decade agoFavorite Answer
Give the control subject decaf coffee. Should prove interesting to see if they have a psychosomatic rise in pulse rate.
- 1 decade ago
i dont no but i think its by what will be the pulse rate the people with different tipes of soda from the caffeine
or
what is the difference from the pulse rate with different ages and with age has the best pulse rate
