Cloud or Fog? Young readers will learn all about the differences between this weather like where they form, how they form and what they can cause. Easy-to-read text is enhanced with stunning color photos. A Fog in a Bowl activity at the end of the book helps kids put their newfound knowledge to use! Aligned to Common Core Standards and correlated to state standards. Super Sandcastle is an imprint of Abdo Publishing, a division of ABDO.