MAKE YOUR OWN MAGNETIC COMPASS WITH NEEDLE - Telugu
Channel: Little Science Experiments
Date: 2020-07-15

MAKE YOUR OWN MAGNETIC COMPASS WITH NEEDLE

                       The compass was invented more than 2000 years ago. The first compasses were made of lodestone, a naturally magnetized stone of iron, in Han dynasty China (20 BC – 20 AD).  The compass was later used for navigation during the Chinese Song Dynasty (960–1279 AD), as described by Shen Kuo.   Later compasses were made of iron needles, magnetized by striking them with a lodestone
The magnetic compass is the most familiar compass.  It functions as a pointer to a magnetic North indicating approximate north direction.  It is based on earths magnetic field.,  
Now take a sewing needle, ring magnets, plastic caps and bowls.  First identify the north & south poles of ring magnets.  Now needle is magnetised with one of the poles of the ring magnets by single tough method of magnetization.     
Let us fix the needle to a small plastic cap.  We shall fill the large cap with water.  Place the needle cap over the water.  We can observe needle turns North-South direction of the earth.

THINGS WE WILL NEED:
1. Ring magnets
2. Thread
3. Sewing  needle
4. Plastic lids
5. Water
6. Dry leaf
7. Pin
8. Razor blade
9. Coin
10. Styrofoam piece
11. Circular magnet
12. Rubber band
#MagneticCompass #LittleScienceExperiments #6thGradeScience