TerraNova Science Practice Test 2026 – The Complete All-in-One Guide to Exam Success!

Wind direction is shown by an instrument that lines up with the wind and reads off the direction from which the wind is coming, using the four cardinal points. A weather vane sits on a pivot and, when the wind blows, it turns to face into the wind. The base usually has a compass-like dial that shows which cardinal direction the wind is coming from, making it clear whether the wind is from the north, south, east, or west. This is different from a barometer, which measures air pressure; a rain gauge, which collects precipitation; and a telescope, which is used for viewing distant objects. So the weather vane is the instrument that indicates wind direction in cardinal points.