WIND DIRECTION INDICATOR : Wind vane
From a sheet of card, cut out a circle and a pointer as shown below. Punch a hole in the centre of the circle. With a pencil divide the circle into 4 equal parts with the lines running through the centre. On the four points near the circumference, mark the four directions, N, S, E, and W. Tape the pointer to a long nail. Secure a small piece of plastic conduit pipe sealed at one end on a wooden post in your garden where it is windy. Insert the circle through the pipe and check the directions on the card with the help of a compass. Lastly insert the nail inside the pipe. As the wind blows the pointer will indicate the direction of the wind.