
Clouds are made of tiny drops of water or ice in the air. They form when air rises and cools. This makes the water in the air change into a liquid.
Photo Credit: Don Hammond/Design Pics
This year, we will have the first female vice president … read more
December 10 is Jane Addams Day. Why was Jane Addams … read more
September 15th to October 15th is Hispanic Heritage Month. Hispanic-Americans … read more
© 2025 McGraw-Hill Education. All Rights Reserved.