It's easy being green when you have our Earth Day game for a guide. Just print out this Earth Day game and get ready to score one for the planet.

Challenge your science student to record a shadow over the course of a day and make the connection between shadows and the time of day.

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

This science vocabulary activity is packed with basic science vocabulary words to help the youngest kids warm up to scientific concepts.

Did you know the surface of the Earth is always changing? Learn about the events that change Earth's surface with this crossword puzzle for second and third graders!

Studying earth science? Learn about the different types of clouds with the series of cloud types.

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