You will get a shock out of this!

Just think if we didn't have electricity.  Think about what you do when you get home, now think about what that would be like without electricity.  We use electricity for TV, our homes, and lots of other things too.  On the weekends I play my game.  Now if we didn't have electricity I wouldn't be able to do that.  Most of us have cell phones and laptops and I use mine all the time.  If we didn't have electricity then we could never charge them.  I would hate having them if you couldn't charge them.           

                                                   STATIC ELECTRICITY
There are two things I'm going to talk about today and that's static and current electricity.  Static electricity are just electrons jumping from one object to another.  Static electricity can transfer from things like a metal doorknob to your finger.  If you have on socks the electrons from the rug rub onto the socks and you start to become negatively charged.  So watch where you walk when you have on socks in you house.   

                              
                                CURRENT ELECTRICITY
Current electricity is just the constant flow of electrons.  Current electricity is everywhere.  When you plug in something in your outlet the electrons are going through the plug into the outlet.  Then they go back through the  plug and into the battery.  So without current electricity the world would be a lot different.    

  CONDUCTOR

Have you ever seen a really tall building and the top of it had a pole? Well that's a conductor and the conductor is made of metal.  The lighting is attracted to the pole and  if there's ever a thunderstorm the lighting shoots towards the pole and the it's sent to the ground safely.  Some houses have conductors but mostly the taller buildings have them.        

  

                                          INSULATOR                                  There's also something called an insulator.  It keeps the electricity from going out of control.  Have you seen jumper cables?  The cables have some rubber on them because when you put them on your car there's a shock that could hurt or be life threatening.  So the rubber is something you should always have when you have jumper cables.  Electricity is everywhere so we should have the most out of what we have now because in the future we might not have it.

       

                     
                                  

ATOMS!

Atoms are everywhere, we just cant see them.  There in our food, our drinks, there even in us!  In about 1802 a guy named John Dalton built a  model called the atomic theory of matter which means that each type of matter is made up of one type of atom.  Then each atom could be put into a group called an element and each atom was identical.  An example of that would be that gold atoms make gold and iron atoms make iron.  Dalton also said that an atom could not be created, made into smaller parts, or destroyed. 

                         

In 1897 a guy named J.J Thomson found the electron.  He used a device he created that had a vacuum tube with two medal plates at each end.  He found that a beam would form between the plates and he called this beam the cathode and the anode.  When you put a magnet near the beam it would cause it to bend and this mean that the particles of the beam were electrically charged.  Thomson discovered that the beam was made of negatively charged particles and they were later called electrons.  If there were the same number of protons and electrons then they would cancel each other out.  If electrons leave then the atom becomes positively charged, but if more electrons come then the atom becomes negatively charged.  When the electrons come or leave the atom becomes and ion because of its either positive or negative charges.  Thomson thought that electrons were stuck throughout a positively charged area.  For example everyone knows what cookie dough is right? Well the electrons are the chocolate chips and the dough is the positively charged area. 

There was one more guy I wanted to talk about.  His name is Ernest Rutherford and he made a device that had a beam and a thin sheet of gold plate.  They shot the beam and most of the particles went through the gold.  He found out that the gold had to be made up of mostly empty space.  When the other parts of the beam didn't go through he changed his theory saying that there had to be some positive particles in the gold.  He called this the nucleus and the particles inside the nucleus were the protons.  The electrons were the other particles spinning around it really fast.  Well of course there's so much more to tell but then I would have to get into the more scientific terms and you would all get bored.  Hope you learned a lot.    


          





               

POWER

What is power? We all think power is like grown ups telling us what to do and lights and stuff like that.  We also think power is like Superman, Batman, and Spiderman.  Well not this kind of power.  Power is how quickly work is done.  Power, work, and force are all in the same category.  Force is measured in newtons, work is measured in joules, and power is just work divided by the time.  The way you write the formula for power is P=W/T.  To find how much power you used you have to know how much work you did and how long it took you to do it.  If you were lifting something that had a mass of 10 kilograms and you lifted it 10 meters in 5 seconds then you did a lot of power.  The faster you do work the more power you have done.  So if you lifted something that was 5 kilograms, 5 meters in front of you and you did it in 5 seconds then you didn't do that much work.       

The trip to Florida

The trip to Florida was good.  We saw the shuttle but we couldn't see it launch because they kept changing the days.  We left Monday night at around 9:40. For the first few hours on the bus we all talked and watched a movie.  At about 12:00am we all fell asleep and it was cold on the bus.  When we got to the retreat we had to sit on the bus for a few minutes so the teacher could check us in.  Everyone was tired because when we got there it was 6:00 in the morning.  We got to our rooms, put our bags down, and then we got back on the bus and went to the Kennedy Space Center.  We first went on the tour and saw the shuttle from a far distance. You had to squint your eyes to see it.  We also saw this big machine that moves the shuttle up and down.  It weighed 6 million pounds! When we got off the bus we watched a movie talking about the launch and how it happens.  When the movie was over we went through the exhibit and there was this thing that showed us what happens to the shuttle and what they need to do to it. We saw all this cool stuff and when we all went to the Imax movie everyone fell asleep and didn't really see anything even some of the teachers fell asleep.  After that was over we went on this simulator and before you go in you have to watch a move and it tells you all you need to no about the shuttle.  When you get on the guy that talked to you about how all stuff works tells you how the simulator works and what you need to know.  It goes up, down, back, and forward and also when you get in to space your gravity turns off and you open the top hatch and see the earth.  Then when you get off you walk down the hallway and theirs all these boards you can read to lean more about the shuttle.  No one had time to look at them because of all the other people that were walking behind us.  Once that was done we went to the gift shop and everything there was so expensive.  The chess board that I wanted was $40 and that was the only thing that I really wanted.  Me and Fatima were standing in line for 2 hours and I told her that we stood in line for to long not to get the chess set.  When we left the store everyone was waiting and then someone told us that they postponed the shuttle launch until the next day.  We were all mad that we had to wait another day to watch it.  The next day they postponed it until Thursday and that's the day that we were leaving.  We were gonna stay and watch but when we woke up the next day they postponed it again until Friday and there was no way that we could watch it.  After that we went to the beach and I didn't like water so Fatima and Celine said that Poseidon was mad at me cause I said that.  He got my shoes wet and that mad me hate water even more.  We stayed at the beach for a while and then went back on the bus and back to the motel.  The next day we left and we were all still kind of mad that we didn't see the shuttle launch.  The drive didn't seem that long the way back but of course I fell asleep listing to music.  Then we stoped at McDonald's and kind of had a second breakfast.  We all ate on the bus and then went back to heading home.  Once it was like 3 or 4 we stoped at Wendy's for lunch.  We ate again and then stoped one more time to go to the restroom.  That was our last stop until we got back to the school.  I got my stuff and left because my parents were already there so I just went right home.

Energy Energy and more Energy

What is energy? Anyone know? Anyone at all?  Well energy is something like work.(you remember that blog right)  Energy is the ability to do work but not work it self.  The two things you need to know about energy is potential and kinetic energy.  Potential energy is like when if someone is about to throw a ball and they are going to put all there strength into throwing it.  So Potential energy is something or someone that is about to do something to that object.  Next is kinetic energy,this is when a person or thing has done some kind of work to that object.  An example of kinetic energy is if someone throws a ball, the ball has lost its potential energy because the person let the ball go.  The ball now has kinetic energy because of its motion.  

Which do you think has the most potential energy, a glass on the floor, a glass on top of the frig, or a glass on a coffee table?  The answer is the glass on top of the frig because the higher the object is the more potential energy it could have.  The higher object does have more kinetic energy then the lower glasses.  

NO JUSTIN BIEBER

Justin Bieber started maybe like one or two years ago.  Usher was his mentor and I think that Justin just needs to go away and go to school like every other sixteen year old boy.  All these girls are in love with him and he just makes all these new songs.  He was on some show and the guy asked him if he thinks Germany would be good in basketball.  He said he didn't know what that was.  So the guy shows him the card and he still doesn't know what Germany is.  I think that if he wasn't doing all this singing and had went to school like everyone else, he would know what Germany is. 



He was singing on stage one time and someone threw something at him and it took him like 2 minutes to react.  See what not going to school does to you.  My guess is people would just keep liking him until something happens.  Something always happens and the media turns it around and makes them seem like there the bad guy.  I'm surprised that he hasn't already been disliked but I'm not surprised if Germany doesn't like him anymore.  If Justin Beiber was gone off the face of the planet right now then there would be riots and chaos everywhere, but if people wait and he gets older then they would stop liking him.  Me personally I don't like him but I'm probably one out of like 20 people on earth who hate or strongly dislike him.
    

WHO WANTS TO DO SOME WORK!

What is work? Everyone knows what work is right?  Well not this kind of work.  Work is done when a force causes an object to move in the same direction of that force.  There are different types of work and even a way to measure it.  Effort is when you can be doing so much and trying so hard to do something but you still might not always be doing work.  You can be putting effort into moving boxes from place to place.  However once you started moving forward with the box the force was still moving up and the motion was going forward.  Remember about what newtons measure in, well work also measure in Joules. 

To understand how to find out if your doing work is to use the formula- W=FD which is work= force times the distance.When you find your answer you have found out what the Joule(s) of that object is. Well what's a Joule you ask?  A Joule measures how much work you have done.  If I were to push a box in a direction, then that would be work because I'm the force pushing on that box and were going in the same direction.(or positive work)  If I was pushing the box and using force and the box wasn't moving then you would not be doing work.(or negative work)  For you to be doing work you and the box has to be moving in the same direction.  Thanks for reading, now I've got my own work to do. 

ARCHIMEDES PRINCIPLE

Archimedes was not just a mathematician, he was also an inventor, and a engineer.  He was born in  Syracuse,Sicily and lived in the year 250 B.C ( about 2,260 years ago).  One day a craftsman made a crown for the king and Archimedes didn't think that the crown was real.  Archimedes used what he called  Archimedes Principle and found the density of the metal in the crown.  He also found out that when you put something in the water the water would rise or displace, this is called displacement.  When he got in the bath he found out that his body was lighter in the water and he jumped out of his bath running and yelling Eureka ( Which is the Greek word for "I have found it").  

He also created great things in his life which some of us like today.  Archimedes created what he called "Block and Tackle" which meant that he could move things without having any trouble.  He created the screw pump which meant he could move water from a low place to a high place without trouble also.   Archimedes used what he called the sand reckoner and he used that to calculate the number of grains of sand there were in the world (kinda weird right).  He invented war machines to help protect his city and he thought that his inventions were the best inventions every created.

Buoyancy and Density, Good or Bad?

An object will sink or float by its density and buoyancy.  If an object can float then the buoyancy of that object is positive.  If the object sinks then buoyancy is negative, and if the object neither sinks or floats then it's neutral.  If you were on a ship you would need to know the buoyancy of the water so you dont sink or go to slow.  If you compare a lake and rock the molecules in the rock are closer together than in the lake so the rock would sink.  To find an objects density you divide the objects mass by the volume.  Density is the physical property of matter and is in everything.  If I was in the pool I would just be standing there with some of my body in the water, but if I was less dense I would float and not ever be able to swim ( bad I know).  When you push a liquid away thats called displacement.  The dead sea has a lot of salt and because of the salt we can float without trying and we can also eat it.

Gravity is the thing that pulls all of us to the earth.  If I were to jump I would fall right back down because of gravity.  Also, when I push people ( Lizzy, Azaira) on the swings outside they go up becausee of force and come back down because of gravity.  To me I sometimes say we don't need gravity and we would be better off without it.  We could do anything and life would much easier.  If we didn't have gravity then the earth would not orbit the sun. Then life on earth would be different.  

 A few weeks ago Tyler walked in front of Shelby while she was swing and he said "Hit me with your best shot" then Shelby couldnt stop herself so she hit Tyler and he went flying.  Gravity pulled him down towards the center of the earth. 

Newtons first law states that "an object in motion will stay in motion and an object in rest will stay at rest."  If I were to drive a car and keep going in the same direction then I would stay in motion until some kind of force stopped me.  If I were to sit in a car and not do anything then i would be at rest until some kind of force moves me. 

 Newton second law states that "an object with an unbalanced force acting on it will move in the direction of that force."  If I was standing still, talking to someone and someone else was running and they didn't see me and ran into me, I would be forced forward.   

Newtons third law states that "forces occur in equal and opposite pairs."  If a rocket was going to take off into space the ignition from the rocket and the ground would cause it to go up.  The ground pushes the rocket up because of the ignition.   

 

Cheetahs are the fastest land animals in the world.  They are being protected by hunters and other people who want to hurt them.  Did you know that another name for the cheetah is the Acinonyx Jubatus. An adult body can be 105-152 cm long, the tail can be up to 51-87 cm and the shoulder height is 62-86 cm. The weight of the cheetah is 31-64kg. The male is slightly larger than the female but there both fast. If you try to run away from a cheetah you wouldnt even get 5ft before it cought you.  The cheetah can run a constant speed of 75mph, and the length of 112-120km/h.  They can run up to 125mph.  The only enem for the adult cheetah are the humans, and cubs have to watch out for lions, hyenas,eagles, and jackals.      

Fiat Coupe 20V Turbo 0 - 230

speed: The distance an object travels in a unit a time.

average speed: found by dividing the total distance traveled by the total time taken.

Instantaneous speed: the speed of an object at one instant of time.

velocity: an object is the speed of the object and the direction of its motion.

law of conservation of momentum: the total momentum of a group of objects remains constant unless outside forces act on the group.

The laptop is one of the worlds greatest invention.  we use the computer to play games, research, and do whatever we need done.  There are some people who stay on computers because they think that they need it all the time.  If computers were to never be made again i think that some people would have a hard time doing the things they need to do, other than reading books.  the first laptop was created in April of 1976 and created by the company Xerox PARC.  This computer costed $50,000 when they first came out!  Just think now u wouldn't think anyone would ever use this type compared to the ones we gave now.  If apple and Sony and all those other companies keep making computers then who knows what they will come up with. I think the computers we have now are a lot better that what they had in the past.