Home » Posts tagged "Science Facts" (Page 60)

## Paragraph on “What did Victorian Children play with?” complete paragraph for Class 9, Class 10, Class 11 and Class 12

What did Victorian Children play with? If you keep a sharp lookout, sooner or later you will come across Victorian toys in museums or antique shops. The pictures on these pages will give you some idea of what they are like. Victorian children used to play with beautiful dolls, gaily painted rocking horses, mechanical, toys that were exact replicas of such things as steam trains, correct in every detail, and perhaps,...

## Paragraph on “What is an Electromagnet?” complete paragraph for Class 9, Class 10, Class 11 and Class 12

What is an Electromagnet? A compass needle will only point north- south if there are no other magnets near it. If there are, the needle will be attracted towards them and will point in a different direction or be deflected. It was discovered that if a compass was held near a wire carrying an electric current, the needle was deflected. But, if the current was switched off the needle swung back...

## Paragraph on “Where is the Earth’s South Pole?” complete paragraph for Class 9, Class 10, Class 11 and Class 12

Where is the Earth’s South Pole? The earth has north and south geographic poles. If we could draw a line between these two poles it would pass through the center of the Earth. It would also lie along the axis about which the earth Rotates. The Earth acts like a giant magnet and so also has north and south magnetic poles. The magnetic poles are not always in the same  place....

## Paragraph on “How does a compass work?” complete paragraph for Class 9, Class 10, Class 11 and Class 12

How does a compass work? A magnet will always point north- south because it is attracted to the north and south magnetic poles of the earth. This property is used in the compass. A small needle – like magnet with its north and south poles marked is balanced on a pivot. The pivot is placed in the center of a card with all the directions or ‘points of the compass’ marked...

## Paragraph on “What are the poles of magnet?” complete paragraph for Class 9, Class 10, Class 11 and Class 12

What are the poles of magnet? Two magnets are illustrated above. The one on the left is known as a horseshoe magnet and the one on the right is known as a bar magnet. If some small pieces of iron are put near either of these magnets most of them will cluster around the ends  of the magnet. This means that the magnetic effect is strongest at the ends. These are...

## Paragraph on “Who discovered the first magnet?” complete paragraph for Class 9, Class 10, Class 11 and Class 12

Who discovered the first magnet?   In about 600 BC a Greek called Thales found a rock which attracted bits of iron to it. He named this rock ‘magnets’ after the town Magnets where it was found. The rock he found was an iron ore but other substances act  in the same way. We call them magnets. Materials which are attracted to a magnet are said to be magnetic. Iron and...