This experiment was divided into two parts. For the first part of the experiment, the intentionally manipulated. This was the independent variable. The dependent variable measured was the
was
For the second part of the experiment, the
independent variable. The dependent variable measured was the
was intentionally manipulated. This was the

Julia would be observing a. static electricity was caused by her sweater rubbing against her shirt and transferring electrons. she didn't touch anything metal, so that would cancel out b.she most likely didn't rub her sweater against her hair either, so that cancels out c.she also didn't scoot across the carpet while trying to take her sweater off, that cancels out d.so that leaves a.a. is correct.