In science we have been learning about the uses of magnets. We have learnt about the capability of magnets, and the power that they have. Did you know that they are one of the only objects on earth which have the ability to move things without the being touched. Every magnet there is big or small, however powerful they all feature a north and south poles. There a diffrent types of magnets. Like: a horseshoe magnet, and bar magnet and more. We learnt that magnets power can go through objects like our hands, plastic, cardboard and lots of other things. We watched a video on the most powerful magnet in the world which was in america, and we learnt that magnets can also do things not so great in the world today. If you put a magnet near your credit card it can degauss all the information, it can also do the same with things like video tapes. It can also break a lot of modern devices if and magnets go near them, by attracting anything it can for you computer. Magnets have good uses as well as long as you are careful where you are putting them because of the power of the magnet.
There are ways we can show this invisible for because if you try and put the north pole of one magnet and the south of the other the will attract to each other and go connect together if they get to close. But if you try and put the north end of one magnet and the north pole of the other they will repel each other making the other magnet move around to stop direct connect unlike when you have opposite pole which attract the same poles repel. We learnt that using magnets is something that we probably will use everyday. We also got to use the power of magnets to have fun with as well. We play a duck racing game just using the power of the magnets which went through the tray, to a duck with iron nail in it, so that the nail would attract the magnet to it. So we could move the ducks along the tray, just using the common magnet.
In tech (science), we have also been learning about compasses and how they relate to magnets. We have also listened to a story told back in the old days, about magnesia. there is an island made of magnesia, magnesia is a load stone mineral; it attracts iron. A long time ago people used to sail past the island on their ships; the ship would crash and break down because of magnesia island, the iron made of the ship, and the nails, were attracted to the magnesia (load stone mineral) and broke the ship. For ages people predicted it was haunted and to never sail pass; until they discovered what magnesia was. Did you know if you magnetize a needle; you can create a compass!? And you only need a few things! Before starting; make sure ALL electronic devices are tucked away safely, magnets can affect your device if there close enough. You will need a magnet, a needle, a bowl of water and a cork, cut thinly. Firstly you are going to rest you cork on the water (it will float around, that's ok) then you will grab your needle and simply rub or swipe onto the magnet for about 10s all around. After that; you will place your needle on the top of the cork piece floating in the water, and boom your done now watch it turn north and the other side facing south! WARNING; make sure all magnets are at least a metre away from your compass, this will effect it; causing it to attract to the magnet.
In science tech , we have as well been learning all about iron in our cereal and how much is in it.
We watched a video about a guy showing us some iron that was blended. He used a magnet to guide it round.It did look quite like a black spot. He told us that the iron in our cereal is so small , you can't see it when you're eating , also it had been mushed into tiny , tiny pieces. Iron isn't probably what you think you should be eating , but it gives you good strength. It's mostly in cereals than any other foods. Iron is attracted to magnets , and the iron can follow it round. But if you put a magnet near cereal , it doesn't do anything. But , if you get a full container (Small) of water, the cornflakes (Or another cereal) follow it. Even if some pieces are quite small. Blending cereal is when you can actually see the iron. Some cereals have more than others. When you blend the cereal the iron is like a black spot. If you drag a magnet near the spot. It follows the magnet like it's getting guided or is strong and is wanting to be attached to the magnet. The earth is also a magnet , featuring a molten iron core. Its for the high high energy rays for a solar flare which is created for a storm on the sun. By creating a protective layer , called the lines of magnetic force.
By Aimee , Yasmin and Henny.
