Carol Charlton', age 10, of Millicent, Alb., Canada, for her question;

What are clouds made of?

All clouds are made of some kind of moisture. Sometime  the material is liquid water and sometimes the moisture is frozen in fragments of ice. The particles which make a cloud are unbelievably small   and light enough to float in the air.

A fluffy summer cloud is a misty mass of water droplets separated from each other by plenty of space. If the countless droplets in such a cloud Were packed together, they would make perhaps a pint of liquid water. In a rain cloud, the drops of water are much larger. The thin, gauzy clouds that catch the colors of sunset are usually made of fine fragments of ice.