Disinfectant investigation

I want to investigate...
How different disinfectant concentrations can affect the growth and reproduction of micro-organisms.

Variables

Independent variable:
I will be changing the concentration, I will be doing this by changing the amount of water added to the same amount of disinfectant

I will use full strength dettol

Other variables:
The variable I will be measuring is how much bacteria grows,
Make sure I have the same size disk so the dettol is the same

Dependent variable:
I will be measuring the size of the clear zone around the disk I will do this my measure the radius of the dettol disk

Hypothesis:
I predict that with the correct ratio of water and disinfectant it will kill more of the bacteria

The things that could change:
We need to grow the bacteria at the same temperature.

We need to grow the bacteria on the same medium.

We need the bacteria to grow the same length of time.

Reliability:
To insure reliability I will repeat the experiment three times

Equipment
Dettol
Vived
Filter paper
Water
Celitape
Petry dish
Hole punch
Bacterial solution
Twessers

Method:
1. I'm going to get the equipment

2. Punch out four disks of filter paper equal size with the hole punch

3. Pour the solution in the petry dish using a dropper and swirl it around to make sure its covered

4. Tip out the excess solution from the Petry dish

5. Mark out the Petry dish using the Vived into quadrants and label each quarter on the bottom of the 

Petry dish

6. Add all water onto the Petry dish

7. Add full strength dettol

8. Make up the solution with 400ml of water and one cap full of dettol and add that to one quarter of 

the Petry dish this is the manufacturers recommendation

9. Add more water onto the solution to dilute it and add that to the last quarter of the Petry dish

10. Write your name on the side and seal the dish with celitape

11. Incubate the dish upside down at 20°C for 24 hrs

12. Observe the petry dish and measure the diameter of the clear zone around each disk with a ruler.

13. Repeat the experiment two more times to have three results

Results:

Discussion:
bacteria is a unicellular microorganisms which have cell walls but lack a nucleus, including some which can cause disease,  bacteria is made up of DNA which is the genetic information for the bacteria, Cytoplasm which is jelly that fills up the cell and this is where chemical reactions happen here, ribosomes where proteins are made, cell membrane which controls what enters and exits the cell, cell wall and the purpose of this is to keep the structure of the cell and protect the cell contents, capsule that protects the bacteria, plasmid which is DNA of non essential processes, Flagellum and an Flagellum is a tail to help the bacteria move around, and lastly Phili which are sensing organs that can attach to other cells. Bacteria reproduces by replicating the DNA and the cell elongates and then the cells begin to divide and 2 daughter cells are produced. For nutrition the bacteria use a pump to suck nutrients in like a sponge with water 

Dettol is a disinfectant that contains chloroxylenol and what it does is it knocks down the bacteria cell wall and kills it  and is a common houshold item because of how useful and effective it is to kill bacteria 

Conclusion:
I conclude that the more dettol was added to the concentration the more bigger the clear zone got and more bacteria died

Evaluation:
The experiment went very well we got the results we needed to make a finial conclusion I can say these results were reliable because I have 3 of them that say around the same thing, next time I could try different water types like distilled

Implication:
you could impliment this by if someone gets hurt dettol gets put on wounds to kill the bacteria to stop infection
Osmosis

Year 11 Art

Theme: reality vs fantasy

Ideas, Cars, speed

Mediums: Drawing, Photography

Visual Symbols, current technology and future technology

PBL

Callum, Xing and I are in the group ‘Pizza Hut’. The topic we have chosen for our project is litter. This is a very big issue all around the world. We have noticed that in our parks around Hornby there is a lot of litter, even in places with bins just a meter away. The world is being polluted because of the amount of rubbish just lying around or getting blown into the oceans. We've done some research on several sites listed below. We have found out things such as:

• 33% of litter is cigarettes.
• The US spends 11.5 billion dollars each year on litter clean up. 
• It's causing pollution.
• It is harming wildlife and sea life.
• It doesn't do any good for our environment.

Litter is a huge problem and we may not be able to help much but we would like to try to in the area we live in. We are thinking of going to a few parks in the Hornby area to go pick up rubbish we find on the ground. We would also like to put up some posters around our school to tell students not to think twice before putting their rubbish anywhere but the trash. We hope to provide awareness to people about what can happen when they drop even one piece of rubbish. We know we can't erase the problem but hopefully, we can make even a small difference in our neighbourhood. 

https://www.conserve-energy-future.com/causes-problems-solutions-littering.php#

https://scienceleadership.org/blog/littering_and_its_effect_on_the_environment

ttp://www.flagstaff.az.gov/DocumentCenter/Home/View/6817

https://en.wikipedia.org/wiki/Litter

Firat Action plan

Steps needed to achieve the goal.	What will help us achieve this goal?(Enablers)	Possible barriers and how they could be overcome.	Who is responsible for this step?	Date this step will be achieved by.
GEt rubbish bags and gloves. Ask for permission to leave school.	The support of our kind teachers and each other	Not being able to get equipment - improvise Not having permission - just pick up rubbish around the school Raining - wear a jacket or go the next day.	Everyone

Second Action plan

Steps needed to achieve the goal.	What will help us achieve this goal?(Enablers)	Possible barriers and how they could be overcome.	Who is responsible for this step?	Date this step will be achieved by.
Make posters and copies. Find places in the school to put them up where people will see them.	Permission to put up posters around the school. Possibly could	No paper or ink - Hand draw them People ripping them off - put them back up	everyone

Third Action Plan

 

Steps needed to achieve the goal.	What will help us achieve this goal?(Enablers)	Possible barriers and how they could be overcome.	Who is responsible for this step?	Date this step will be achieved by.
Email City Council to Organise rewards for people to help	People to help us edit the email	They might reject us	Our group	16/11/17

Fourth Action Plan 

 

Steps needed to achieve the goal.	What will help us achieve this goal?(Enablers)	Possible barriers and how they could be overcome.	Who is responsible for this step?	Date this step will be achieved by.
Organise a group to clean up the hornby area. Places like denton park and kyle park.	The school  or the community.	No one wanting to help - we can just do it by ourselves	Whole group

Action plan #1 Putting posters on doors and walls 21,11,17

Paper Sissors and Tape enabled us to do this
we didnt have anything other than potentally not finding this to disable us to do it
we did this well


Action Plan #2

on the 28th of november, we went to kyle and Denton park to pick up rubbish, we noticed that we picked up quite a bit of rubbish two bags in fact.

 what enabled us to do this was permission and the equipment and luckily we had no disablers

Reflection: Our topic for PBL it was all about litter. We had 2 action plans, make posters and put them up  and go around the school, kyle park and denton park to pick up rubbish . We did the posters to create awareness to put rubbish in the bins. Everything went to plan as accorded, but we didn't have much as a big impact on the community as we thought. Things that enabled us were that access to materials like printer and tape to help us post the posters up and gloves and rubbish bags to help us pick up the rubbish. We hope we made some impact on the community even if its just one person putting their rubbish in the bins. I feel like we didn't spend our time properly and thats why we could have done better for next time.

persuasive essay

Why are Samsung and apple such a big debate on which is the better phone statistics don’t lie right? Samsung is better than apple and here is why, Samsung has better performance,  better-facing camera, and a headphone jack  

The new Samsung phones smash apple with their performance

results from “http://crambler.com/10-reasons-android-phone-better-than-iphone/”  we see some examples of this ... the ram: for the iPhone x is 3gb while the Samsung s8+ has 4gb, another example is the weight the iPhone x weighs 6.14 oz (174g) but again the Samsung s8+ beats it with 6.10 oz (173g), even though it is not the biggest change it's still a difference and lastly the screen resolution:  iPhone x 2436 x 1125 and the Samsung s8+ 2960 x 1440 you can see Samsung “one-ups’ them everytime we see that Samsung has the best smartphones available and is superior performance wise    

Samsung also has a better front-facing camera.

even though iPhones are well known for there great cameras Samsung still bets it as shown in these statistics from “http://crambler.com/10-reasons-android-phone-better-than-iphone/” the iPhone x  has a 7-megapixel camera as the Samsung s8+: has 8 megapixels this means you’ll be able to take better quality selfies to share with all of your friends and family  

The Headphone jack Is a very popular feature among phones , It allows people to listen to music with ear/headphones and even get a aux cord to listen through speakers although the new iPhones don't seem to have one

From the iPhone 7 to current iPhones there isn't a headphone jack anymore, instead they have Airpods which are easily lost but you can spend a fortune on buying a adapter for it but you cant listen to music while charging.

But samsung does have one for all of their phones, will apple be able to bring it back? Time will tell

This is why Samsung is better than apple, Samsung has the best performance,  The best facing camera, and most importantly a headphone jack!

Random Writings

Drugs should be allowed in sports, why might you ask? Well because it can make the sport more entertaining to watch and it can also lower the stress that the players deal with before and after playing.

Although I do agree that it shouldn't be allowed in highly competitive events such as the Olympics as it makes it unfair for everyone else for fun events it should, in my opinion, be allowed.

Creative Writing #1 Risk Or Challenge

I was standing there. on the field in the scorching humid heat waiting for my team, legs shaking and mouth trembling “I have never done this before” “what if i do not do this right” I kept thinking to myself, like it was a real challenge. as I was searching I kept asking different teams “are you them” all of them said no until I finally found them,  they were energetic running around tackling each other and hyped up for the game to happen. I didn’t talk much because when I did I stuttered and mumbled so I thought it would be best to not talk unless I had to, I started off getting them to do drills, the kids dashed off zig zagging around the cones like it was nothing, but best of all they were using teamwork. passing to one another up the field and shooting goals. they were incredible.

It was time, the game was about to start. all the players were called onto the field the two captains did paper scissors rock to see who starts,we were off to a good start my team won, I blow the whistle and its kick off. in a matter of minutes the first goal is given but it seems like the good luck has worn off, the other team was the one who scored and they went nuts about it. my team got more into the competitive side and got serious, in the first half the score was 0-1, but the kids were determined to win, the last half went quickly but luckily the team was able to bring it back to 1-1, it was the last minute and of course my team had the ball, one passed to another and he passed to one more person, the ball was in line with the goal and he kicked it, the whole field went silent it was like no one was there, it went in and it was all over, the clutch of a lifetime,

everyone went in line and shook each others hands saying good game, then after went into a huddled and did cheers, it was a good game.

My selfie wood cut plan

My emotion is happy because it gives a positive vibe
My most inspiring printmaker is Emile Nolde because it's simplistic
In my final work i want to say i did it and i proud
my next step is to do my woodcut

A picture of Emile"s work