Climate and Weather by Carla Mooney Rourke Educational Media rourkeeducationalmedia com Teacher Nates available at rêm4teachers com
CHAPTER ONE Elements of Weather Look out the window Is it sunny or cloudy hot or cold Every day people ask about weather Weather is how we describe the events in the atmosphere that happen each day The weather may be cloudy rainy or snowy Weather can change each hour day or season It may rain in the morning and then become sunny in the afternoon U S Winter Outlook Temperature Cooler 40 Cooler 33 33 40 50 Warmer 40 389 Emprar Protability Doc Jan Feb A weather map shows the likelihood of regions experiencing a colder or warmer season winter
The Sun does not heat the Earth evenly Areas where the Sun's rays are most direct like the equator become hot for most of the year Areas like the poles that receive more indirect rays are colder for most of the year The unequal heating from the Sun puts the Earth's atmosphere in motion Hot air is lighter and rises Cold air is heavier and sinks The air warms at the equator then rises and starts to move toward the poles At the poles the cooler dense air sinks and moves back toward the equator where it replaces the warm air and the cycle begins again This exchange of warm and cold air affects weather
