Weather vs. Climate Weather is the day to day condions in our atmosphere. Sunny Precipitaon Windy Tornados, hurricanes, etc. Weather also includes temperature, air pressure, humidity, wind, etc. We base our day to day acvies on weather. Weather can change quickly but follows predictable paerns. Climate is the average condions for an area over a period of me. This can be over a season or over a number of years. There are three main climate zones: 1. Tropical- This area is between the Tropic of Cancer and the Tropic of Capricorn, along the equator. 2. Temperate- 4 seasons (This is where we live.) 3. Polar- at the poles (North and South Poles) Biomes are oſten idenfied by climate. Dry Humid Tropical, etc. Wind Wind is produced by the uneven heang and cooling of the Earth produces the wind. As the sun warms the Earth's surface, the atmosphere warms too. Some parts of the Earth receive direct rays from the sun all year and are always warm. Other places receive indirect rays, so the climate is colder. Warm air is less dense than cold air and rises higher in the atmosphere. Then cool air moves in and replaces the rising warm air. This movement of air is what makes the wind blow. For example..... There are two types of breezes along coastlines. 1. Sea Breeze- occurs during the day The sun warms up land more quickly than water, and warms the air about the ground. The warm air expands and rises and cool air comes in from the sea to replace the rising warm air. 2. Land Breeze- occurs at night The air also cools faster above the land than the sea, so at night the air above the water is hoer and rises. The cooler air above the land now goes out to sea to replace the rising air here. These predictable paerns make coast lines a great place to harness wind energy!