The first step in the scientific method is the ____. A ____ could also be called an educated guess. The person doing the experiment is watching the ____ variable. The person doing the experiment is manipulating the ____ variable. In an experiment to see which blood type attract mosquitoes, the number of bites counted is the ____ variable. In an experiment to see if plants grow more when we talk to them, the amount of talking is the ____ variable. In an experiment to see if children who go to pre-school are better readers by second grade than children who not go to pre-school, the second grade reading scores are the ____ variable. In an experiment to see if Tide laundry soap works better than Arm and Hammer laundry soap the laundry soap type is the ____ variable. In an experiment to see if students who sleep 8 hours before a test, score higher than students who sleep less than 8 hours the amount of sleep is the ____ variable. In an experiment to see if peppermint oil helps people with migraine headaches have less headaches, the amount of headaches counted is the ____ variable.

Scientific Method

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