(i) Suresh is cooperative, intelligent and creative boy.
(ii) Some non-magnetic materials are plastic, stainless steel, glass, fibre, etc.

When we place any iron bar near a bar magnet, it becomes a magnet temporary and small objects like pin, iron filings can be attracted by it. But when we remove this bar from magnet, it again becomes an iron bar and does not attract the small iron objects.

The two properties of a magnet are as follow
(i) A magnet has two poles, i.e. north and south.
(ii) It attracts magnetic materials like iron, nickel or cobalt.

Amagnetic keeper is a piece of soft iron. In keepers, two magnets are arranged with their opposite poles lying side by side. A piece of wood should be kept between them and two pieces of soft iron (keepers) should be placed across the poles.

No, it is not possible to isolate North and South pole of a magnet.

She could not succeed because the stainless steel pins are not made of iron, so they are not attracted towards magnet.

Magnetic compass is the instrument used to find the direction.

(i) Magnets can lose their magnetic properties if :
(a) exposed to heat.
(b) they are dropped or hanged on enough to bump their domains out of alignment.
(c) They are burnt up to their curie point (the temperature at which they get demagnetized completely.)
(ii) Safety measures to follows while storing horseshoe magnets :
(a) Always wear safety goggles when haning large magnets.
(b) Always wear gloves when handling magnets to prevent pinching.
(c) Children should NEVER be allowed to play with NEODYMIUM magnets
(d) Keep magnets at least 20 em away from sensitive electronic and storage devices.
(iii) When the magnet is suspended freely with the thread, it aligns itself in the geographic north-south direction. We use this property of magnet in compass to give us the directions at a particular place.
The diagram of the compass is shown in the figure below:

The two ways to identify the magnet are
(i) Hang the metal bars with a thread and having its level horizontal one by one and let it stop in any direction. Now, if we move it by"pushing it slowly and it returns to the same direction, it means that it is a magnet otherwise it is an iron bar simply.
(ii) Take some iron filings and move the iron bars over these iron filings one by one. If iron filings are attracted very strongly at poles, then it is a magnet and if it is not attracted, then it is simply an iron bar.

Steps involved in the magnetising of an iron strip are
(i) Take an iron strip which is to be magnetised.
(ii) Keep it in a wooden table.
(iii) Hold one end of bar magnet in your hand and keep the other end of bar magnet at one end of iron bar.
(iv) Without lifting, move the lower end of bar magnet to the end of iron bar.
(v) After reaching end of iron bar, lift the bar magnet and bring it to the same position and repeat the process again and again.