# japan

Essay by iloveester1999Junior High, 9th gradeA, October 2013

The waterpennies

Question:

How many drops can a penny hold?

Hypothesis:

We think that all pennies will have the same exact amount of drops because; they all weight and look the same so they will all have the same amount of drops.

Materials:

We used: 5 pennies, regular water, soapy water, beakers, goggles, cups, trays and napkins.

Procedure:

We start off with the regular water.

We take the beakers and the pennies and starting to see how many drops it can hold.

We do the same steps to each penny, and record the data.

Then we continue the procedure with the soapy water. Recording each penny's data and checking how many drops each penny can hold. ( we're doing the same steps as we did in the regular water)

CLEAN UP TIME!

It's very important to put everything away in its place and make sure the area that you are in is clean when you're done with the lab.

Results: (data)

Here are the results from the lab that we recorded:

Regular water

First time second time third time forth time fifth time

 15 drops 21 drops 18 drops 21 drops 15 drops 10 drops 18 drops 20 drops 18 drops 10 drops 8 drops 20 drops 15 drops 10 drops 18 drops 5 drops 15 drops 10 drops 18 drops 5 drops 5 drops 11 drops 11 drops 5 drops 8 drops

Penny # 1 penny # 2 penny # 3 penny # 4 penny # 5

Year: 1981 year: 1980 year: 1971 year: 1980 year: 1963

Soapy water

First time second time third time forth time fifth time

 10 drops 21 drops 10 drops 15 drops 22 drops 8 drops 20 drops 8 drops 18 drops 21 drops 5 drops 18 drops 8 drops 8 drops 23 drops 4 drops 15 drops 5 drops 5 drops 10 drops 2 drops 10 drops 4 drops 10 drops 20 drops

Penny # 1 penny # 2 penny # 3 penny # 4 penny # 5

Year: 1981 year: 1980 year: 1971 year: 1980 year: 1963

Conclusion:

We conclude that our hypothesis was wrong. Because, ALL pennies are different. Just because they look and weight the same does not mean that all pennies have same measurements of drops. The reason they could be different is because of the year and how rusty or clean they could be. In addition, all pennies have the same color and worth.

Data:

As we could see in the data charts, in both regular water and soapy water, we could identify that the pennies increase and decrease every time we measure them. Same exact pennies different measurements on each chart. In addition this happened because of the different waters we used, like how many measurements one penny can hold. If it was both from the same water, I bet that the measurements will all be the same but because it was from different types of water. Different results were given out.

Errors:

The errors that we made are that we didn't repeat the experiment over and over again. If we would it would give us different results and our hypothesis would have been correct.

Lesson learned:

What I learned is that all pennies were different in this experiment and so are humans. We are all different and we do have different measurements in our own unique ways. In my point of view I think that everyone is different and that's what makes us special.