Cahrateristics of Metals

What is metal

You can see various kind of instruments in your home. Touch and see theseOne by one. You can see some of them are very hard some of them are nothard some are thick and hard. Now hit these every thing  one by one. Some of them are getting sound ‘Tic…Tic’..Some of them are getting sound ‘TinTin…’or ‘TocToc…’ Often ‘Tin.. Tin’ sound  is giving by metals. Metals are very hard. When We hit these it give Tin… Tin… or any other hard sound. When we polis a Metal it will become shin. But after some days we cannot see the shine on it. Take two metal spoons, and hit to each other. It will give ‘Tin. .Tin’. .sound. Take a metal spoon and a plastic spoon and hit each other. Now you cannot Hearer  tin tin   sound .Plastic wooden are difference from each other .If some one  Hit  you by a metal bar you will feel pain. Now you can understand what is metal.

Characterizes of  metals.

Now you know about metals. .Metals are hard .It can polish .After some daysThe shine cannot see on it. Now take one metal spoon and try to bend and  hammer it. Metal can  bendand hammer. Take plastic or wooden spoon and try to bend and hammer  now write downYour result on this  lines. ………………………………………………………………………………… ……………………………………………………………………………….. ………………………………………………………………………………….. Some times plastics can bend but plastics cannot hammer how ever wooden Cannot hammer or bend. Take one battery , small peace of wire   and a torch bulb, now try to light this    bulb .you can see this bulb is lighting. If connect plastic or any other stringas a  wire, we cannot light the bulb. In the middle of every wire you can see a metal string, the electricity travel across   this metal thread. Take a metal bar and put one corner in to fire. After some time touch and see the other corner .Some time you cannot touch this corner, it is very warm. Why is this Write down the reason of this, …………………………………………………………………………………. ………………………………………………………………………………… ………………………………………………………………………………… ………………………………………………………………………………… Heat travel across every metals .Because of this reason some spoon and some saucepans  handles made by plastic or wooden. Now you have learned about metals, Metals are very hard. If polish the metal it will became shine. Metal can hammer and   bend. Electricity and heat conductive by the metals,

Use of metals, So many people are wearing chain ,rings, bangles, and other jewelry. These some of are gold, some of are silver, or other metals, or plastic.Gold is most expensive metal.So many jewelry are made by gold. Can you think about your home equipments .Some of them are made by metals .Some of are made by other materials. Choose six metal equipments in your home .and write down three of them, .......................... .......................... .......................... metal equipments are very advantage to us. In our home we are using so many metal equipments.See the kitchen how many metal equipments are there, ex: kettle ,spoon ,plates ,knife, and some more. Various kind of peoples are using metal equipments for their jobs ex; doctors,drivers, carpenters, are some of them. Now you have idea about metal, character of metals ,and useful of metals.




 * 1) Human get more benift from iron.
 * 2) WThere are various metals in the world,
 * 3) gold is the most expensive metal.
 * 4) coppor,iron,silver,magnisiyam, are some exampls for metal.