4)+Earth+(Seasons)+Ch+2.1

= = **ASTRONOMY CHAPTER 2; Section 1:** Earth **(THE SEASONAL INTERACTIONS OF EARTH & SUN)**

***ALWAYS REMEMBER: THE REASON FOR THE SEASONS IS TILT! EARTH IS TILTED 23.5degrees!** .

SEASONS ONLINE LESSON: http://www.materialworlds.com/sims/SolarSystem/worksheetSolsticeEquinox.html