ACTIVITY#5: CREATE A COMPASS OR SUNDIAL
COMPASS INTRODUCTION The Compass is an instrument for orientation that marks the north, south, east and west. The compass marks, with a magnetized needle, the north, because the earth has a kind of giant magnet (magnetism), which exists naturally, inside the earth, and which goes from the north pole to the South Pole. If the magnetized needle inside the magnet points north, it is because the magnetism has its south end, which is the opposite of the magnet. The compass has long served as a GPS, as it does not need any electricity. MATERIALS -One slice cork stopper -One needle to sew -One magnet -One small container with water PROCEDURE First we cut a quarter of cap cork, with a cuter. After we insert the needle in the cork stopper, because it goes through completely. Next we fill the small container with water. Then we rub the needle with magnet, magnetize the needle. Now we put, the slice cork stopper and needle together in the container with water. Finally, if ...