### November 2016 archive

My prediction:

I think that the grape will produce the most electric voltage, because grapes  are acidic, so I think this factor will help add to the electric voltage, where as apples, are much less acidic than grapes.

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Our Results:

Our results where that the grape was more successful creating a higher electric voltage than the apples. This may be because of the higher acidic level in grapes than in apples – like I mentioned in my prediction – giving off a higher electric voltage, helping to give more power. This is because, the charged particles from the acids, are the same as the charged ones in the electric current. So, this would be producing more electric current, this will make the battery more charged, while being more acidic at the same time.

So, we observed in this experiment, that the more acidic the fruit (the higher the pH levels) the more charged the battery will become. We also observed that different types of apples can have different electric voltages, because each different type or apples acidic levels (and pH levels) are slightly different than each other, and this affected the apples results. Where as we only had one grape, but did notice the different of the acidic levels of the three fruits.

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Q: What type of circuit will produce electron flow in your fruit or vegtable?

A: Since, electrons do physically move when voltage is applied, – because, they are charge carriers to be used to transmit electromotive force (the electric voltage) – they flow in a circuit, because the circuit has positive and negative charges (shown in the coloumb), the electrons float freely around the circuit from one atom to another.

Q: How can I use this in my everyday life?

A: Some batteries are acidic, (a car battery), while the more commonly used ones for every day life (AA, AAA, D), are Alkaline. While these batteries are different (chemistry’s), you could technically use the zinc and copper battery (like we did in class), make create a battery if you desperately needed one – and if you had A LOT of fruit with you -.

Q: How can we modify our experiment to improve our results?

A: When we do this experiment, to really get an accurate idea of the differences, a good thing to look at, is the different pH levels between the fruits and the vegetables (acid levels). We could use fruit with a pH meter, and repeat our experiment three times to get the best general result we can. And then, we could test the electric voltage on each, to get the best results and really get a good idea of which fruit or vegetable has the highest pH levels (and acid levels), to conclude which fruit or vegetables will create the most electric voltage.

Here is our Poco-Oppolis static electricity test for Science.

Here is my Electricity Mind Map,

In science we were given the chance to create a project with ISS. In our groups we each had to think of an experiment that we could conduct in micro gravity. Here’s what our group chose to do:

In our group, we decided to take bacteria and bad bacteria to see how it would react in micro gravity. We then specifically chose to use Bacteria Vibrio Chlorae with Pili. We chose to do this experiment to see if they would produce faster, or slower to help us determine more the difference of how they react in micro gravity to being in gravity, to help get a better understanding of the bacteria itself. This understanding could help us with many things, not only in science 9, 10… But in life as well if one of us becomes a scientist, or for many scientists who may have this question now, or even other students.

To find a great experiment, we thought more about our question, with lots of research from multiple sources on how we could conduct the experiment, count the Pili, and how we could benefit from this experiment. We then got contact with Miguel Gutierrez, – a SFU graduate in molecular science – who we determined would help supply us with the bacteria that we needed. We also attended the SSEP program at Heritage Woods Secondary School to open up new ideas and to understand the concepts that we planned to do our experiment on.