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.

From nature hunts and rock painting to recycled art and poetry writing, these activities combine scientific exploration with arts and crafts projects.

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.

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!

Discover how seeds move to new places with this cut-and-paste worksheet for second and third graders!