Precipitation comes in many different forms and is caused by a wide variety of forces. But what makes the sky open up? And how is water changed into all of these different forms? Young students will find the answers to these questions in All About Rain, Snow, Sleet & Hail, and learn more about the sky and storm clouds in this engaging program. Two hands-on demonstrations show that air not only has weight, but that warm air rises, while a visit with a meteorologist illustrates how the measurement and observation of rainfall helps in determining the forecast. Part of the multivolume Weather for Children DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades K to 4.