This document discusses living things and what they need, including air, water, food and shelter. It also discusses properties of air like not being able to see, smell or taste it. Additionally, it covers different types of weather like sunny, cloudy, rainy, windy and snowy. It describes wind as moving air and precipitation as water falling from clouds. Temperature is also discussed as being hot, cold or warm. The document concludes by describing instruments used to measure weather like thermometers, rain gauges, anemometers and wind vanes.