Science - Circuit Board Of An Comupter!

Circuit Board... What do we know about Circuit Board??

Hmm... It's a closed path through which sn electric flows or may flow. A Power source that is connected to two or more components eg. light bulbs, or computer circuits They are called a series of circuits.

Printed Circuit Board (PCB) Build - Up

PCBs are made of multiple layers of Core, Prepreg,  and Copper Foil.

Core:

There are 2 types of Core. 

One is things made out of metal on the Circuit Board or PCB.

  

Second is Core that is used in PCB, underneath the Core they have whole bunch of threads that receives instructions and performs the calculation.

Prepreg:

Prepreg is a Carbon Fiber that is used to stick the core layers together.

How does Circuit Works Or PCB??

In our bodies, our heart produces the pressure to make the blood circulate, a generator or battery produces the pressure or force to push electrons around the circuit board. In our body Walls of blood vessels impede the flow and the smaller the blood vessel, the more resistance to flow. Some of the pressure produced by our heart is just for pushing blood through the blood vessel. As electrons move through wires, they bump into atoms. This impedes the flow of the electrons, the wires offer resistances to the flow of the current. 

Electric circuits are composed of wires and other components like bulbs, transistors, computer chips, and motors. Wires are made out of metals called conductors that have a low resistance to current. A Chip is a tiny piece of silicon, usually around one centimeter squared. A chip may be a single transistor ( Its a piece of silicon that amplifies electrical signals or serves as an on/off switch in computer applications). 

The most important elements in an electronic circuit are the transistors. Diodes are the tiny chip of silicons that act as valves to allow current flow in only one direction. The other electronic components are passive elements like resistors and capacitors. 

Resistors look like this...

The resistor is an electrical component that limits or regulates the flow of electrical current in an electronic circuit. It can be used to provide a specific voltage for an active device such as transistors.

And Capacitors look like this...

Capacitors are used in charge pump circuits as the energy storage element. Capacitors are connected in parallel with the DC ( Direct Current) power circuits.

The third passive circuit element is the inductor, which stores energy in the form of a magnetic field.
An inductor/ coil or reactor is a passive two-terminal electrical component which resists changes in charges in electric current passing through it. It consists of a conductor such as wire, usually wound into a coil. The Energy is stored in a magnetic field in the coil as long as current flows. 

This Picture here...

All components are through-hole mounted, they are placed on top of the board, their electrical connections ( the legs) pushed through holes in the PCB, and then soldered from the bottom of the board. There are two thicknesses of track the thin tracks used for signals requiring little current flow, and the thicker tracks are used for the component power supply a positive or negative that requires a great current flow.

This a computer MotherBoard↑↑↑
And This is a Laptop MotherBoard↓↓↓

Social Studies - Graph

In Social Studies, 10Hh started to share with our class about how long do you stay on your device. We had to download an app and it records the amount of time you've used.
Here is the graph about the longest Device used...

This is the Graph about People used there devices for the longest. Sadly I this graph doesn't allow me to add which people used there device for long but you can see how long they've used the highest is 43 Hours and the lowest is 30min.

This next graph is about what type of devices they used most...

This is what amount of people from 10Hh used most of there devices.

School Uniforms - English Essay Writing

Should schools get rid of uniforms??

How would you feel when school will get rid of school?

I think schools shouldn’t get rid of uniforms Because, if the schools get rid of school uniforms the students will get bullied in school. They’ll compare how expensive clothes they’re wearing and also the school rating will go down. If students won’t wear uniform’s this might cause a lot of Bullying, Self-conscious and terrified.

In school students get bullied for different kinds of reason’s and there is a lot of reason. If schools got rid of uniform’s these takes to a reason that students get bullied, how?, well first of all they compare their clothes to each other for example, I'm wearing the most expensive and branded shoes, and the other student is wearing a cheap pair of shoe so they get picked up by rich students. But not only shoes they also compare their accessories, etc.

Students get Self-conscious (Embarrassed) every single time, now you're wanting to know how do students get embarrassed by wearing clothes. Well first thing, talking about school uniforms students don’t get embarrassed if all of them are wearing the same uniforms but when it comes to mufti or schools got rid of uniforms students get self-conscious because they don’t know what to wear or not or even though they go to school in their mufti clothes they’ll be shy, they’ll be confused pretty much.

In school students try to look cool, stunning other sorts of stuff, but their friends or other students don’t know what's the secret behind him or her for being cool. Student’s wearing cool clothes makes them look cool but their friends won’t know how expensive or cheap are the clothes, so when students wear cool clothes to make them self look cool but they are terrified because most of them don’t want to let their friends or other students around them know that it’s a cheap type of clothes and if that happened they’ll get bullied and getting exposed in front of students.

Another thing about not wearing school uniforms is that people and students from outside can get in school easily because they'll be wearing random clothes and not school uniforms. This can cause a lot of problems in schools. So should we keep uniforms or not??




 

English Essay Writing

In English, we have been doing Essay writing and I was supposed to finish this last term and I'm posting this term which is quite dumb but that's me... I have done my all paragraphs but the thing I messed up was I created different docs for two different paragraphs and now I can't find it because I didn't name it which is dumb of me. 
This is my first two paragraphs but the second paragraph is not completed because it's on other docs that I cannot find it.

 Chapter 47

“You fight for a man who will always hate you just because of what you are.”

In this Scene, Zelie releases a heavy sigh. “ You fight for a man who will always hate you just because of what you are.” This means Inan fights for his father to protect Orisha and destroy magic. Even though his father hates him but Inan still fights for him. Inan is a maji as well but his father doesn’t know about it, this happens in life too where a person is in trouble and the other person tries to fight and help that person even though the first person hates him, also friends as well. 

Chapter 79

“He’s a stranger. A Soldier. The shell of little prince”

In this Scene, King Saran tortured Zelie and its interesting about how Zelie became an empty “shell”. Zelie believed in Inan but he trapped Zeilie in the truth of his betrayal. 

In Universal, human beings do torture each other, going back in days when it comes to slavery there are people that kidnap or betrayal to each other the same as in this chapter.

So this was my first two paragraphs that I had it and my other two are lost so if I'll be able to find it than I can post it today or else I have to make a new one which I don't want to do it.

Antartic Centre - ESOLF

On Wednesday, June 5th we went to International Antartic Centre in Christchurch. We Have seen a lot of things there but one thing I really liked was Hagglund. So I'm gonna talk about Hagglund for example what are the functions of it, Where can the Hagglund be ridden and much more.

What is Hagglund??
Well, Hagglund is a Vehicle that can travel across the ice, up and down hills, over crevasses and through the water. Before these Hagglund's were called Bandvagn and it was developed by Hagglunds for the Swedish Army.

What does Hagglund look like??
                 


This is what Hagglund looks from outside and the interior is pretty nice as well so I've got photos of my friends inside of the Huggland.

 This is what the interior looks like of the Hagglund At the front of it. The back part of it looks something like...

THIS!!↓↓↓↓↓
 That's where the passengers can sit and some can sit at the front. Also In Hagglund, there can be a total of 17 people in it which is pretty hilarious.

I've got photos of my friends and myself inside the Hagglund.

What's Interesting about Hagglunds??
It can drive like normal vehicles on the road, it can drive over tires easily but not only tires other things as well which I don't really remember.

Testing For Hydrogen Gas - Science

In Science, We have been doing Metallurgy Or you could just say Properties Of Metals. In this topic there was a bunch of experiments that we were told to do, well it depends on you that how much you want to do but I've done only one of them Which was Testing For Hydrogen Gas.

And The Acid is called Hydrochloric Acid.

Testing For Hydrogen Gas. hmm... 
What do we know about Hydrogen Gas or Testing For Hydrogen Gas?? 

Well simply, it's just about making the Mg Ribbon (Magnesium) Dissolve in the test tube and the Hydrogen Gas will go into the boiling tube than you need a flaming splint to insert inside the boiling tube to make a POP sound. Yay. And how do you do that?? by adding Acid in a test tube than put the Mg Ribbon inside that test tube and then put the boiling tube upside down and hold it, grab your other test tube an put underneath the boiling tube then push it up so the Hydrogen Gas can go in Boiling Tube. Once the Mg is dissolved use flaming splint and insert into the boiling tube and it will go POP!!. Sorry, I'm bad at explaining. 

Aim: To show that Hydrogen Gas is produced when a metal reacts with acid.

Equipment: A test tube, a boiling, Bunsen burner, wooden splint, a bottle of acid, a piece of metal, safety glasses.

Method: 1. Light Your Bunsen burner
              2. Add your sample of metal to your test tube. Add 2mL of acid.
              3. Carefully invert the boiling tube above the test tube containing the metal and acid.


Now, this is just a demonstration of what to do I've got photos and videos to show you now...

In this photo, you can see the setup that my friend and I did and another thing you don't really need a Bunsen burner you can just use a lighter to light the splint.

  





Over here it's just showing the Metal inside the test tube and how big the metal is supposed to be I don't know if you can see it properly If you cannot then my bad.












In here as the metal was inside the test tube we added 2mL of acid into the test tube and then the metal started to dissolve and the Hydrogen Gas started to release. Then once that happened we just invert the boiling tube above the testing tube containing metal and acid.








I'm going to give an example in word equation and other ways.

Magnesium + Hydrochloric Acid → Magnesium Chloride + Hydrogen
In  this equation, we can see that Mg reacts with 2HCl and forms or produce MgCl2 and reacts with H2

 Here is another similar equation of this...

Mg + 2HCl → MgCl2 + H2

What happened here is, Mg Has 2+ electrons to give to Hydrogen (H-Cl) and to make 2HCl Mg have to give both of its electrons to HCl, Mg has 2+ positive electrons
Also, I have a video to show you guys what does it sounds like and there will be people talking in the background so very sorry.
And another thing the video is a bit big so I cannot upload it on my Blog page but I'll put down the link so you guys can go ahead and look at it.
HERES THE LINK⇒ Testing For Hydrogen Gas Vid!!!!


What Am I learning??
I'm learning about Hydrogen Gas but not only that also about what can be made by Lead, Aluminum, Tungsten, etc.

How does this work show my learning??
It shows what I have done on this topic and what type of blog I'm doing on this topic.

What Am I wondering??
I'm wondering what happens when you add a lot of metals and acid in a test tube than invert above the boiling tube above test tube than light the splint and put inside the boiling tube will the POP sound or Noice will Go Louder or Won't go louder?

Science - Making Indicators

In Science, we have been learning things about Acids And Bases, later on learning about Indicators and the pH Scale. Well, I've done an experiment with a group and that experiment was about making indicators I've got some photos of the experiment we did...

So first we did was Added some Sodium Hydroxide and Hydrochloric acid into those test tubes and then we added Cranberry Juice into the test tubes so it will turn into a different color.


And then on the 2nd photo here we added a Litmus Indicator as you can see inside the test tube there's a paper those are Litmus paper which turns red in acidic.

Then we waited for a few minutes to see the changes in the litmus indicator and once we took it out the colors were changed into red but we also had Universal Indicator, look ahead on the 4th test tube from left as you can see the color is so dark because Universal Indicator has different color changes from strong acid to strong bases.

 

And at last this photo is not really important because they added acid and tea which turns out to be this so yeah...

What Have a Learnt??
I have learned how about Indicators and the pH scale also about Acids, Bases, and Alkali.

How does this work show my learning??
It shows what I've been doing in science for those weeks and learning new things.