Temperature tells you how hot or cold the air is at a given moment. Tracking it over time reveals patterns that help explain larger weather changes. In this experiment, a "thermometer (temperature)" joins four other instruments to build a daily picture of conditions.

Among the five instruments you use in this project, the anemometer tells you how fast air is moving each day. Paired with readings from a thermometer, barometer, wind vane, and hygrometer, it gives you one piece of the larger puzzle a meteorologist assembles to predict tomorrow's weather.

An anemometer captures one piece of the weather puzzle: wind speed. Its spinning cups translate the force of moving air into a number you can record and track. Reading it daily alongside a thermometer, barometer, wind vane, and hygrometer builds a dataset that reveals how wind speed connects to approaching fronts and pressure changes.

Air pressure is the push of air on everything around it, and mapping where that push is strong or weak helps predict weather. A barometer captures daily readings of that pressure. Over two to three weeks, you build weather charts of high and low pressure areas to see how shifting conditions shape what happens locally.

Air pressure is one piece of the forecasting puzzle, and a barometer is how you measure it. Over two to three weeks, you map high and low pressure areas using daily readings from five instruments. That data, combined with information about fronts — the boundaries between air masses — lets you build weather charts.