The result will usually be that the vinegar cleans the pennies better, demonstrating that a lower-pH solution is better at cleaning discoloration due to oxidation. The volume of liquid and the material of the penny are both controlled variables in this experiment. This experiment is especially good for teaching the concept of a controlled variable if you include a third variable -- how dirty the pennies are.
1 doctor agreed: Yes: Pinworm symptoms can include gastrointestinal upset, anal or vaginal itchiness, loss of appetite, difficulty sleeping, irritability, restlessness. Untreated pinworm infection can lead to weight loss, diarrhea, genital rash, urinary incontinence and vaginal discharge.
Parasitic causes of diarrhea: Introduction. Parasitic causes of diarrhea: Parasitic causes of diarrhea caused by a parasite infection. See detailed information below for a list of 7 causes of Parasitic causes of diarrhea, Symptom Checker, including diseases and drug side effect causes.Â» Review Causes of Parasitic causes of diarrhea: Causes | Symptom Checker Â».arasitic causes of diarrhea: Comorbid Symptoms. Some of the comorbid or associated medical symptoms for Parasitic causes of diarrhea may include these symptoms: 1  Abdominal pain. 2  Abdominal symptoms. 3  Bowel movements.