Discusses cloud types, cloud formation, and how clouds affect the climate on earth and other planets. Includes experiments.

The New York Times bestselling Arc of the Scythe series continues with "captivating...thrilling" (School Library Journal) stories that span the timeline. Storylines continue. Origin stories are revealed. And new Scythes emerge!
There are still countless tales of the Scythedom to tell. Centuries passed between the Thunderhead cradling humanity and Scythe Goddard trying to turn it upside down. For years, humans lived in a world...

"Most of the time, hail occurs as tiny pellets not much bigger than gravel or sand. But when the conditions are right, hailstones can be as big as golf balls or even baseballs! They crack car windshields, take down power lines, and even injure people outside when they fall. Readers learn lots of cool science about not just how hail forms, but what conditions need to exist for hail to be destructive. Full-color photographs emphasize just how big hailstones...