1. Lemon and vinegar experiment
BY:Essence .J

2. The Problem
Does lemon juice clean pennies better than vinegar?

3. How I did the experiment
Find 6 to 10 tarnished pennies ,fill one small cup with 5% white vinegar and the other cup with lemon juice .Put half of the pennies in the vinegar cup and the other half in the lemon juice cup.Then leave for at least 30 mins.

4. My Hypothesis
Yes my hypothesis was right that lemon juice cleans pennies better than vinegar.By being submeged in each soluion for 30mins.

5. What I have learned from this experiment
I have learned that lemon juice has the high level of ph of 30 and the vinegar juice has a ph level of 2.3 and that means lemon juice has the higher acid level

6. What I would change in my experiment and the problem that occurred
The problem was I kept putting too much of lemon juice and not enough vinegar.What I would change in my experiment is make sure to measure the same amounts by using a measuring cup. In addition I could leave the pennies in the vinegar and lemon juice longer.