"Axial Tilt is the Reason for the Season"
An article about the axial tilt and how it causes seasons: Skeptic's Play: Axial Tilt: The Reason for the Season
Also includes a bonus card image - I bet some of you creative people could make this using ornament stamps
"Young girls need to see role models in whatever careers they may choose, just so they can picture themselves doing those jobs some day. You canít be what you canít see." --- Astronaut Sally Ride