Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.

How do clouds form? Why does it rain? Help your student answer some of these questions by completing this water cycle worksheet.

Learn your clouds with this coloring series of cloud types that merges science with coloring fun.

Create and observe your very own rainbow using light and water with this science experiment worksheet!

Dig your hands into some earth science with this soil sheet! Your little scientist can hone his reading skills as he learns what soil is and how it is formed.