2/27/2008

Magnets

In complete sentences, and in good paragraphs, explain to me what a magnet is!
Use the terms magnetic poles, and magnetic fields.

Tell me why not all objects can be magnets. How can you create temperary magnets?!

Explain how the Earth is like a huge magnet, and how this fact helped Sailors many years ago!

20 comments:

Anonymous said...

A magnet is an object with special particles that are attracted to certain metals, mainly iron. A magnet has 2 magnetic poles. A south and a north pole. If you stick a bar magnet down in a pile of iron filings it will create a magnetic field around the magnet.

Some objects can not be magnets because they are made out of things like rubber and plastic. Other times if it is a nail or some other metals you can make it a temporary magnet. A temporary magnet is a magnet that is not always a magnet but has been made a magnet. You can make a temporary magnet by rubbing a permanent magnet (such as a bar magnet) beside the nail. If you try this with an eraser or anything made of rubber or plastic this will not work.

The earth is like a huge magnet because its center is all molten iron. The earth's north and south poles are just like a bar magnets north and south poles. The Earth also has a magnetic field around it. With Earth's magnetism the sailors were able to use a magnetic compass to see where they were going. The compass works because the needle always points toward the Earth’s north magnetic pole.

Anonymous said...

Today I am going to tell you some stuff about magnets. A magnet is an object that attracts certain metals mainly iron. On a magnet there are magnetic poles on each sides of the magnets. One side is called the north pole and the south pole. If you try to put together a south pole and a south pole or a north pole and a north pole it will not attract but if you put a south pole and a north pole it will attract. A magnetic field is an area around a magnet where I can't really remember but it is where that thing can act I think.

Not all objects can be magnets because they don't have iron in them I think. This is how you make a temperary magnet. I think you rub a nail over a magnet .Well the earth is like a magnet because in the middle of the earth is like a whole ocean of iron. And it is like a magnet because it has a north pole and a south pole just like a magnet. It helped the sailors long ago because there were magnetic compasses.

Anonymous said...

Magnets atract iron but not everything is made out of iron. Hears how you make a temperary magnet. ferst you get something metle like a nail.Than you rub a perminat magnet on the pece of metle. Than you got a temperary magnet .The center of the earth is made up of molten iron and has a south pole and a north pole. Sailers long ago used cumpuses because a cumpus always point north.

Anonymous said...

I,m going to tell you about magnets. Magnets are really cool. A magnet has a north pole and a south pole. These are called magnetic poles. North points tward the north pole and south points tward the south pole. For a magnet to be a magnet all the tiny particalshave to be in a strait line pointing north or south.

A magnet has a magnetit field. A magnetic field is the space where the magnet can pull iron. Did you know you can make a tempurary magnet by rubbing a magnet agenst it. Magnets are so cool.

Did you know that the earth is a big magnet because it has molton iron in it. Thats why sailors used magnetic compasses. The compasses would tell you what direction to go in. Thats why I love magnets.

Anonymous said...

A magnet is something that sticks to certain kinds of metles mostly iron. Magnetic poles are the strongest part on the magnet and magnetic poles are what attract commpases. Magnetic fields is the place were the magnet can move.


Not all objects can be magnets because if they arn't made out of metel it wont work.And the tiny particals won't line up they will go all sorts of directions and it won't work.
How you can create a Temporary is you can rub a nail on the magnet. How the Earth is like a magnet is it has molten iron in the center of the Earth so it also has magnetic field. And many years ago sailors used magnetic compasses to find their way cross the ocean.

Anonymous said...

I am going to tell you about the wonderful world of magnets!. A magnet is something that is attracted to iron. Magnets have things that are called magnetic poles. Those are the two ends at the end of a magnet that point north and south and they also have the greatest amount of strength on a magnet. Magnetic fields are the areas around a magnet. Not all objects are magnets because they are not made out of iron. You can make a temporary magnet by rubbing an iron nail against a magnet and the more you rub the stronger the magnet the nail will be. The Earth is like magnet because it has molted iron in the middle of it. That helped sailors many years ago find their way at sea because the compass they used would point toward the Earth so they knew which way land was. That is the wonderful world of magnets!

Anonymous said...

magnet is an object that sticks to certain metals. A Magnetic pole is a thing on the end of a magnet. A Magnetic Field is something that is around a magnet and it helps it stick well. Not all objects can be magnets because some things are rubber and some things are magnets. You can create temporary magnets that have to have a big shiny paper clip and wire that has to go around it. Then it becomes a temporary magnet so that it can stick to metals good. The earth is like a huge magnet because it has motel iron. So that is how it is like a huge magnet. It helped sailors long ago because they needed magnets for some things. I think that learning about magnets is very cool because you can learn allot of things and get to maybe discover something new that you didn't know before. It is very interesting to do it and I think that it was cool to do it. And that there's allot of different metals and that they all have something very unlike and I think that it is cool to learn about something new and very creative. It was cool learning about it and I think that we can learn about more! I think that magnets are very interesting to learn about .Magnets help a lot of people because then they can stick and that some people need them.I hope that you have learned alot! By

Anonymous said...

MAGNETS AND HOW THEY WORK


A magnet is an object that attracts certain metals, mainly iron. A magnetic field is the area around a magnet that has the most force. A magnetic pole is the area on each end of the magnet that has the most force.
Not all objects can be magnets. This is because they do not have any poles, so the particles in them do not line up.
If you cut open a magnet, all the particles would line up. They would be pointing different directions because of the different poles, north and south.
The earth is like a huge magnet because the middle of the earth is molten iron. The earth has a magnetic field, too. The sailors invented the electric compass. The put a magnt cork in water and it always poited north. So then they could always find their way home, or wherever they wer going. Now, back to the earth's magnetic field. The field's expanse does not reach our moon. Or moon is too far away for that. Temporary magnets are objects, like a nail, that can be turned into a magnet. What ou need: a nail; a dry cell; and wire. Wrap the wire around the nail a number of imes. REMEMBER: the more you wrap awire around the nail, the stronger it gets. Then, attach the wire to the dry cell. Then, you try the magnet out. Take a bunch of paper clips and see if the iron nail magnetizez them. Count how man paper clps you got, then add more coils to the nail. (wrap the wire around he nailmore times to see if you can get more.)
Let's say you took a magnet and put it towrds iron. The magnetic field has been set to work. The iron attracts the magnet. That is why magnets stick to your refridgerator door. The doors are made of steel, which contains iron. Bye! Hopefully you learnd a lot!

Anonymous said...

I am going to tell you what a magnet is. A magnet is a bar made of iron. It has a north and a south pole these are sometimes called the magnetic poles. A magnet also has a magnetic field this is the space around a magnet that a magnet can work. Not all objects can be magnets because they have to be made out of iron. You can create a temporary magnet by rubbing a nail on a paper clip and coiling the paper clip around the nail. Then the nail becomes a magnet. The Earth is a huge magnet because it has two poles just like a normal magnet. The Earth has iron in it; the iron is called molten iron. This helped Sailors many years ago because they used magnetic compasses and the earth helped with that by being a magnet.

Anonymous said...

I am going to tell you what I know about magnets. Magnets are an object attracts some kinds of medal like iron. A magnet has magnetic poles called the South Pole and the North Pole. A magnet also has magnetic fields. A magnetic field is the distance that a magnet can act. The magnetic poles are the strongest part of the magnet. Also the magnetic poles are at the outward part of the magnet. A magnet attracts certain kinds of medal mostly iron. The earth is a big ball of molten iron that’s why on magnetic compasses the red arrow always faces the north.So thats what I learned about magnets.See you soon:)

Anonymous said...

I am going to tell you about magnets. A magnet is something made out of iron and attracts mainly iron and some other metals. It has a magnetic field. A magnetic field is the area were it can work. There are two magnetic poles a north and a south the reason there are two is because the north end always points north and south points south. The reason for this is because the earth is MAGNETIC. There is molted iron in the middle of the earth. That makes it so the north is magnetic that is why if you let a magnet do what it wants one end will point north. Did you know that sailors used magnets to help them get around the ocean . You may ask how. Well this is how, the north end of the magnet will always point north s o when they wanted to know were north was they would just look at the compass. Magnets are very important to are life. You may not think so but they are!!!

Anonymous said...

I am going to tell you about magnets. A magnet is usually made of iron and it attracts a lot of metals. They have magnetic poles which is where the magnetism is strongest at. The magnetic field is the area around a magnet that the magnet will work. If iron is outside the magnetic field it won't attract. But if it is in the magnetic field then it will attract. Not all things are magnets because magnets are made of metal. First you need a permanent magnet then take a steel or iron nail. Stroke the nail on the magnet and it will turn into a temporary magnet the more you stroke it the stronger it will get.
The earth’s middle is made of molten iron which makes earth a magnet. It mite seem kind of weird but it’s true. Sailor’s used magnetic compasses to travel across the ocean. The north arrow would always point north. I bet that helped them a lot. I’ve told you all I know about magnets so I’m done!!

Anonymous said...

A magnnet is tow megnetick pols
a north and south pol. with a magnetickfield !
not all things can be magnegnts becus you ned ioron for it to be a magnet.
You can cery ate a magnet by rabingping a nall with wier and hucing it to a battery .
The ertgh is a big magnet it has tow polls and has a meget g field and has iern in the mitel .salers yoused magnetic cubisis to tell them wat wa is north and wat way is soth .

Anonymous said...

a magnet is something to poles and and atreack medls as you no.but some thing you do not no is that it dose not ateract serte meatls.

* * * * * * *
when you pet tow south pols together they will posh away. when you pet a south and north pols they will come togethre. back in the old days the salers use magnet compes to find there way aceros the oction
THE END

Anonymous said...

A magnnet is tow megnetick pols
a north and south pol. with a magnetickfield !
not all things can be magnegnts becus you ned ioron for it to be a magnet.
You can cery ate a magnet by rabingping a nall with wier and hucing it to a battery .
The ertgh is a big magnet it has tow polls and has a meget g field and has iern in the mitel .salers yoused magnetic cubisis to tell them wat wa is north and wat way is soth .

Anonymous said...

Today I am going tell you about magnets. A magnet is a thing that attracts to metal. Some things that you can use with a magnet is you can put a piece of paper on the refrigerator, and when you put a magnet on the piece of paper and then the piece of paper will stay on the refrigerator. Sometimes that use a magnet in a junkyard to pick up heavy things. A magnet has magnetic poles and magnetic fields. A magnetic pole is the two sides on a magnet, there is the north pole and there is the south pole. The north and the south pole will attract but the north and north and south and south will repel. A magnetic field is the place where the magnet has to stay. Not all objects can be magnets, for example wood is not a magnet, paper is not a magnet, floor is not a magnet, and computers are not a magnet. All of those things are not magnets because they are not made of metal. You can not make a temporary magnet, but you can make a magnet that works for a little while. You can make a magnet that lasts for a little while by attaching a couple of wires to a battery, then you wrap a wire around a nail, and the more you wrap it around the more paperclips you can pick up. The earth is like a big magnet. The earth is like a big magnet because it has iron in the middle. Since the earth is a big magnet it helped the sailors to use a compass, Because it always points north.

Anonymous said...

Magnets are very interesting to learn about! In fact with out magnets there wouldn't be an earth. Let's back up a little. You see, each, and every magnet has too very strong points on it, a north pole, and a south pole. Witch refers back to the earth again. The Earth also has north, and south poles. Magnets are made up of mostly iron. In the center of the earth (the core) there is tons of molten iron. Witch could only mean one thing, you guessed it, the earth is one big magnet! That is why compasses always work. The little needle on the compass is actually a magnet. (In some casses it is at least.) That is why the compass points up when you want to know witch way is north. The sailors in the past have used these magnetic compasses. Now, let's talk about magnetic feilds. A magnetic feild is the distance in witch the force is working. When the distance of the magnets increases the magnetic pull decrases. Here's something new to talk about. How to make a temperary magnet: First you take a permenant magnet (permanant magnet are allways magnets. Bar magnets are permenant magnets.) and stoke it across a nail. Then try out the nail. Is it now a magnet? The nail is now a magnet. The nail won't stay a magnet forever though. That is called a temporary magnet. Thank you for letting me share with you the wonder of magnets!

Anonymous said...

I am going to tell you what a magnet is. A magnet is something that sticks to metal, mainly iron. A magnet has two magnetic poles. A magnetic pole is the two sides of the magnet that is the greatest. A magnet also has a magnetic field. A magnetic field is the aria around the magnet that allows the magnet to stick to something. Not all things can be magnets but most things can be temporary magnets. You can make a temporary magnet by stroking a magnet against the thing you are trying to magnetize. It’s good that the earth is magnet. Otherwise sailors wouldn’t be able to cross oceans. I am glad God created magnets!

Anonymous said...

In this Writing you will learn about Magnets and temporary magnets!

A Magnet is something that can stick to iron mainly. Magnetic poles are on a magnet they will point north and south when moving freely. The magnet has a magnetic field.

Not all objects can be magnets because there is temporary magnets witch need electricity but an insulator is not. Insulators do not let electricity flow threw them so they can not be temporary magnets or magnets that why not everything can be a magnet.

Did you no that the earth is one big magnet? It is the earth has melted iron in the middle of it. Isn’t that amazing the way God designed the earth!!!!! The way sailors got around by using compasses withc pointed north and south because of the melted iron

Anonymous said...

A magnet is an iron metal that can atract sertain metals. Magnetic fields are when little pices of iron get picked up by a magnet and might form a shape. Magnetic poles have a North side and a South side. You don't need to have every sigle object to be a magnet. You all ready have a big magnet. It is the world. If you want to creat your own temperary magnet here's how you make one. First you need a permanet magnet and a magnet that dosn't have magnatisom in it anymore and rub them together and the magnet that dosn't work anymore will be a temperary magnet for a little while. If you had a magnet and you stuck it on your fridge what will happen. That's right. It won't stick. If you said,"What's going on!" Well the earth is not a magnet. So you need the earth to be a magnet. The sailors used magnets to see where thay are going. That's all I have to say.