Hailey's Blog

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GCF/LCM

By

On September 16, 2016

In Math 10

In math class we learned how to find the lowest common multiple (LCM) and greatest common factor (GCF) using prime factorization. Essentially prime factorization is all of the prime factors of a number that multiply together to create the whole number.

LCM: Lowest common multiple is a number which 2 numbers can evenly be multiplied to, ex. 4,6. The lowest common multiple of 4 and 6 is 12 (4×3=12) (6×2=12).

GCF: Greatest common factor is a number which evenly divides 2 numbers, ex. 4, 6. The greatest common factor of 4 and 6 is 2 (4/2=2) (6/3=2)

ex. a) screenshot-2  b)screenshot-3

In a) the under lined numbers are all the prime factors, in b) the numbers along the left side of the line are the prime factors. In both a) and b) they show the 2 methods of prime factorization that we learned in class. This step is not showing how to finish finding the GCF or the LCM.

This project wanted us to find a different way aside from prime factorization to solve GCF and LCM.

The method I used to find the greatest common factor and lowest common multiple is by finding and listing all of the divisible factors of the 2 numbers and comparing to see the greatest common factor.

GCF ex.

125: 1 5 25 125

100: 1 2 4 5 10 20 25 50 100

To find the lowest common multiple I took 2 numbers and multiplied them in order starting from 1- 6, although this method doesn’t use prime factorization to do it was still successful.

LCM ex.

125: 250 375 500

100: 200 300 400 500 600 700…

Even with this new method I would still prefer to use prime factorization to figure out LCM and GCF, in my opinion it is easier to find LCM and GCF using prime factorization.

 

Scientific Method Bubble Gum Lab Conclusions

By

On September 8, 2016

In Science 10

Today in class we did the bubble gum lab.

Conclusion:

My hypothesis was supported because gum B or Big league chew was the gum that stretched the furthest and was blown the largest.

How does the gum stretchability relate to the bubble size?

  • In order for a bubble to be blown, the gum must be very stretchy. The more stretchy the gum is the bigger the bubble size will be.

With your lab partner, list 5 variables that may affect the outcome of this experiment.

  1. How long ago the gum was chewed.
  2. The temperature/ moisture of the gum.
  3. The total mass of the gum
  4. If both partners participated in the chewing of the gum vs. one partner alone.
  5. How long the gum was chewed for, ex. 1 minute appose to 4 minutes.

Explain how the data you collected can be described as both qualitative and quantitative.

  • Gum B was stretchier then gum A. Gum B was longer then gum A by 2.86cm.

Were SI units used in this lab? explain.

  • Yes, I used Cm to measure the diameter of the bubble, And Cm qualifies as SI units.

img_0511

CBL Skype with Tanya Harrison

By

On June 16, 2016

In English 9, Portfolio

Tanya Harrison is a planetary scientist, she is a PHD student in Geology at the University of Western Ontario. She works mostly on collecting data for and from Mars. Aside from all of the hard work she does with Mars she is a professional photographer.

Yesterday in science class we joined Tanya in a Skype call and talked to her about outer space and what she does in her job. Everyone in the class asked her some questions to further our understanding about space.

My question was. “How do we know all this stuff about space if we haven’t been everywhere?”

Her answer was. “With all of the information that we can collect using probes, satellites and landers, they are able to use all of the data to figure it out.”

Question. “How do the Mars rovers move”

Answer. “The Mars rovers are controlled by people on the ground. Because the distance between Earth and mars is very great, the commands to the rovers takes around 40 minutes or more depending on how far away mars is at the moment. Because of how delayed the connection is, the rovers move very slow at speed of 0.14km/h.”

Some other things that I learned from our Skype call is that the rovers have found evidence of liquid water on the surface of mars. They have found streams of salt left from the water after the water has evaporated.

Scientists have also found out that the lost rover that they thought might have crash landed actually did land but malfunctioned during landing.

Before this Skype chat I was very confused and disinterested about space and now coming out of this experience I would love to look more into space.

Statistics

By

On June 13, 2016

In Math 9

Hailey, Rafael

Statistics

Influences on the collection of data

There are many factors  that may affect the collection of data those include; bias, use of language, ethics, cost, time and timing, privacy, cultural sensitivity, etc. each of these when used can influence which opinion or side a person may choose. For example in use of bias and use of language you can write a question that favors a side for example asking a question like: “You do like pizza, right?” or asking people in an Apple Store what their favourite phone brand is. You can also tilt the answer by asking at different times of the day, normally people in the morning are more moody than those in the afternoon.

 

Differences between a population and sample

Population means all people in the area or group are surveyed.  This method results in a fair answer.

Sample means only a select amount of people are surveyed. This could through the results of the survey a lot more the population method.

 

Types of sampling methods

Random sampling: Refers to a set of population in which each member of the set has an equal probability of being chosen. A random sample is meant to be an unbiased representation of a group.

Stratified sampling: Refers to a divided population split into separate groups, called strata. Then, a random sample is drawn from each group.

Cluster sampling: refers to a the total population divided into groups and a simple random sample of the groups is chosen.

Multistage sampling: Similar to cluster sampling, multistage sampling refers to sampling that involves dividing the population into clusters. Then, one or more clusters are chosen at random and everyone within the chosen cluster is sampled.

Systematic random: Refers to a method in which sample members from a larger population are selected according to a random starting point and a fixed, time point.

 

Differences between theoretical and experimental probability

The difference between theoretical and experimental probability, is that in theoretical probability it is the number of ways that the event could occur. Whereas in experimental probability it is the number of ways that the event has occurred.

 

Examples of misleading statistics

misleading-graphs-lesson-741

The issue with the first graph is that the starting number at the bottom of the graph does not start a 0 so the graph has a different look. Although they both have the same information the second picture is graphed better because the starting point starts at 0.

3c38e17a218f2a493a5410b7da37d917

In these pictures the first graph is done better because the starting point is at 0 and there is a larger variety of numbers along the Y Axis, whereas the second picture starts at 5 and there is not a lot of numbers along the side. This results in a different appearance that makes the graph look like it has a different answer.

pie-chart11

The problem with this picture is that all the numbers added up do not equal 100% rather 105.7% which has now messes up the results because now the numbers are inaccurate.

Modeling Mitosis

By

On May 13, 2016

In Science 9

In this lab we modeled mitosis step by step using pipe cleaners

Interphase 

Screenshot (90)

This image roughly shows a nucleus with chromatin inside of a cell. Interphase is where the DNA is copied.

Prophase

Screenshot (91)

In prophase the spindle fibers atatch to the chromosomes and the nucleur membrain dissapiers

Metaphase

Screenshot (92)

In metaphase the chromosomes make there way into a single file line through the middle of the cell.

Anaphase

Screenshot (93)

During anaphase the chromosomes are pulled apart and starting the cell division.

Telophase

Screenshot (94)

Telophase is the final phase of mitosis. this is the stage where the nucleur pore re forms around each of the new cells. now there are 2 cells where there use to be 1.

 

Bibliography/credits 

-All of the information is from the science textbook

-The pictures were taken by Carolina Chavarriaga

Mutation Story

By

On May 13, 2016

In Digital Citizenship, Portfolio, Science 9

Cat Eye Syndrome

part 1

Hi my name is chromosome 22. I live inside of a little girl named Ellie. Ellie was diagnosed with a minor case of Cat Eye Syndrome at birth, this is all because of me. I wad supposed to multiply by 2 like all of the other chromosome 22 in the world but I made a mistake and multiplied by 4, this was a mistake and sometimes these things happen.

My gene was mutated hereditary, that means that Ellie’s mom or dads cells were passed down to her. Luckily for Ellie, the syndrome I gave to her could have been so much worse. I am weak compared to other chromosome 22 that I know of. Because of me Ellie has mental and physical problems. She has an eye deformity where her pupils are elongated and her eye lids are misshapen. Ellie will never be an average height, she will always be smaller then most other people. She was also born with a learning disability, it doesn’t affect her to badly but it does make it harder for her to learn.

Ellie has to have frequent appointments with a multiple of different doctors and specialists to treat all of her conditions. She has weekly visits with the optometrist, neurologist and other specialists to keep her as healthy as possible. Even with all of this help she will still never know how long she will live, that is the thing I feel most guilty about, the fact that my stupid mistake might cause her he life. Although her diagnosis isn’t strong there are still possibilities in the future for her to develop heart, kidney and other fetal issues. When Ellie was born he parents were told that she would live a year if she was lucky but 11 years later she is still here. although currently there is no cure to Cat Eye Syndrome Ellie might just be lucky enough to live to see the day where a cure is found.

Ellie has grown up not knowing what her life has lied ahead of her.  Nobody understands, kids on the playground stair at her, run away or laugh all because of the way she looked. from a very young age Ellie has had a problem with the way she looks, it isn’t her fault that she looks different, it is mine. Last year Ellie moved to a special school so she can learn better and make friends that don’t only like her for her personality but can understand what she goes through. Because of this change she is living her potentially short life happier then ever before.

Screenshot (95)

part 2

What questions did you need to research in order to create your mutation story?

  1. How does cat eye syndrome affect a person?
  2. How is the gene mutation caused?
  3. What are some facts about cat eye syndrome?
  4. What is the life expectancy of a person with cat eye syndrome?

What new or familiar digital tool did you use to work through this project?

  • I used my school tablet for the research, writing and uploading of this project.

What was the process you used to investigate this topic?

  • I started by writing out all of the questions that i needed to research and found the answers individually. after research on cat eye syndrome i read about gene mutation so I had a good understanding on what i was going to write about.

How did you verify and cite the information you found?

  • All of the information i found was similar on multiple websites

How did this process of completing this challenge go? what could you have done better?

  • finding all of the information was difficult but as soon as i had all of the pieces writing the story was easy. I had a hard time understanding the websites because of all of the intricate language. after a while i started doing my research on kids websites so the wording was simplifified and easier to understand.

What are some other facts you found on Cat Eye Syndrome?

  1. 1/50 000-150 000 people have been recorded with cat eye syndrome
  2. gender doesnt have an effect on the likely hood of getting cat eye syndrome
  3. cat eye syndrome can be detected before the person is born

bibliography

www.buzzle.com/articles/cat-eye-syndrome.html

rarediseases.org

www.orpha.net

https://www.google.ca/search?q=cat+eye+syndrome+for+kids&source=lnms&tbm=isch&sa=X&ved=0ahUKEwj9xuOh_tXMAhVM4WMKHUdeBUMQ_AUIBygB&biw=1422&bih=835#imgrc=ddmMASR77JMwMM%3A

Edible DNA Lab

By

On May 13, 2016

In Science 9

Screenshot (89)

 

this figure is supposed to represent a DNA spiral.  In this lab we used 2 Twizzlers as the sugar backbone, pink, yellow, green and orange marshmallows as the different acids (green: Guanine, pink: Cytosine, yellow: Adenine, orange: Thymine)

 

 

Measuring Currents

By

On May 13, 2016

In Science 9

Screenshot (88)

biggest bulb=180mA

Smallest bulb=60mA

Long bulb=45mA

 

Which circuit has the largest current?

The circuit with the biggest bulb (180mA) has the largest current.

 

Which circuit has the smallest current?

The circuit with the long bulb (45mA) has the smallest current.

 

What is the purpose of the switch in this current?

The purpose of the switch is to turn the light on and off.

 

When you measure an unknown current, you should start with the meter set to a large current scale and then decrease the scale. Explain the purpose of starting with a higher setting.

You should start with a higher setting because starting with a small setting you can break the amp meter by overloading. It is better to start with a higher setting then working your way through the smaller settings so you can get an accurate reading easier.

 

 

Matone de Chiwit

By

On May 1, 2016

In Passions, Portfolio, Science 9

As a group, Jamie, Athena and I came together to create a website for Karishma and her water filter.

At the moment we are communicating with Karishma via email, discussing the website design and plans.

Hear are some of our emails.

Hi Karishma,

This is Jamie, Athena and Hailey from Mr Robinson’s grade 9 science class.

We were really inspired from the Google Hangout the other day, and think that it is amazing what you have accomplished. We would love to contribute to your project; If you allow us, we plan to design and create a website to advertise your project and raise awareness on the issue.
please contact us back at this email
______________@gmail.com
Thank you for your time

Dear Jamie, Athena and Hailey,

Hope you are well. Thank you so much for reaching out to me, and apologies for the delay in replying. I was off contact this weekend, and I just got back a few hours ago. 
I am so glad you enjoyed the hangout! It was wonderful speaking with all of you and truly motivating to see that you’re interested in saving the world! 🙂 I would absolutely love to have you on board and part of the team. It’s great that you want to create the website.
Perhaps we could continue conversing over email, and share some ideas and designs for the website? 
Let me know if that works for you! 
Super excited to work with you and thank you so much for your dedication and involvement. 
Karishma Bhagani

Dear Karishma,

Thanks for getting back to us,we are glad to have the opportunity to work with you, and excited to see what we can create with and for you.
Our plan is to start the website design and run the details past you as we go. We would love for your opinion and specific requests so we can make this website the best it can be.
Some things we plan to have on the website are, a biography or back ground information of you and your journey of your purifier, a space for donations, and pictures of the purifier and others you think might be beneficial to have on the page.
We would like to give you access to the website as it is being made but we are not sure how that is going to work at this point. When we start building it we will let you know so we can figure out ways for you to get involved in the site making process.
If you have any suggestions or questions we would love to hear them
We cant wait till we start the creation, thanks for your time.

Dear Hailey, 

Hope you are well. 
Thank you for your prompt response. There are many ideas that we have, and I’m sure you have a couple at your end too. Perhaps we could start small and then as we go, we could incorporate other ideas. I would suggest using an online website creator, such as Wix or Weebly, unless you’d be interested in making the website using code from scratch. This might be more of a challenge but I would be open to it. 
For now, the ideas for the pages you have are great – that sounds perfect. Maybe you could start off by creating a general design/aesthetic theme for the website and then we could go from there? 
Also, our logo came out today, so I would love to have that on the site too. I’ll be sending out an email to all the schools that are involved with more info this weekend, and so stay tuned! 
Thank you again for all your hard work. 

Hi Karishma,

Today we plan to start our layout using a website called Wix; We will start with a basic design and then send you what it looks like.
Should we use your email to setup or create a new one? Do you have any suggestions for a password? We will come up with a simple and secure one if you do not have one.
Thank you so much, 
Jamie, Hailey, and Athena
Dear Ladies,
Hope you are well. Thank you so much for your email and for updating me on the progress of the website. You could use our email address ____________@gmail.com and then feel free to create a simple password of your choice.
We can then change the username and details later on if need be.
Thank you for keeping me updated and I really look forward to seeing the designs. Once they’re ready, we shall set up a time to talk and you could also get some feedback from the rest of the team and work with our artistic director.
Thanks again and hope to speak to you soon!

We are in the developing stages of the website right now, this means that we have started creating it but still working on getting the information onto the page and some other details. One of the things we would love to have of the website is a place for people to donate money although at this point we are not sure how that is suppose to work. Our current goal with this project is to raise awareness all over the world instead of just locally to make a bigger impact in this world.

This project that we are working on is not only making an impact on the world but it is also impacting me as a person. It is making me step out of my comfort zone and use my head to think about each individual step. Starting this project I decided it would be beneficial to read about the problems that we are trying to help. After reading articles, websites and papers I have a newfound appreciation of everything that I have in my life, and I no longer take things for granted like I would have yesterday. Now instead of hearing about the struggles people are facing and feeling bad for them, I am making a contribution to one day end those struggles. I will no longer be the person that will stand aside and watch things happen.

I will continue to post updates onto my blog as the website comes along and hopefully the impacts that we create.

this is my passion and it will pay off.

Cheek cell lab

By

On May 1, 2016

In Portfolio, Science 9

Screenshot (73)

This is a picture of my cheek cell under a 400x magnification (40x nose piece). In this picture you are able to identify the cell membranes, nucleus, cytoplasm and other cheek cells.

Results

Under the 40x magnification you could see the cheek cells but with little detail.

Under the 100x magnification the cheek cells became more viable but still lacked detail.

Under the 400x magnification the cells became visible as seen in the image above.

Conclusion

Although the image was difficult to identify at first we were able t0 see the cell membrane, nucleus and the cytoplasm under the 400x magnification.   i learned from this lab that with one small swab of the mouth you are able to pick up billions of cells. Why were the Nucleus, cell membrane and the cytoplasm were the only things that were visible? what could have we done differently to be able to see more organelles?

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