Tools/raw materials: magnets, paper, needles, small iron bars, scissors, empty plastic boxes, paper cups, bottle caps and water.

Method/Step: Make a simple compass, cut a small piece of paper with scissors, rub the needle on the magnet, string it on the paper, and float it in the water in the box, and the compass is ready. The method of portable compass: after rubbing the magnet, insert the needle into the paper, fill the paper cup with water and put it into the paper with the needle inserted, and the compass is ready. How to make a bottle cap compass: Rub a small iron bar on a magnet, pass through a perforated bottle cap and float in the water, and the compass is ready.

Compass, most parents think it points south, but in fact it points north. The hands on the compass are painted with different colors, with the red end pointing north and the blue end pointing south. We can remember the color direction like this: Lannan. The direction on the map is the north above, which is arranged clockwise in four directions: east, south, west and north.

Polaris, always shining in the north. Therefore, the direction of Polaris is the north. When we face the north, the south is behind us, the west is on the left and the east is on the right. Compass can help us to tell the direction. One end of the compass always points to the north and the other end always points to the south.