This power point begins with summer and takes the students through the seasonal changes that trees undergo throughout a year. They learn that these changes are caused by the motion of the Earth as it orbits around the sun and the tilt of the Earth on its axis. How does the varying amount of sunlight affect these plants and why do they need to go dormant or "hibernate" in order to survive? This dormant season for trees is compared to hibernation of animals. Beautiful pictures and some animations are included. This power point will help your students gain a better understanding of the seasons and how trees must change in order to survive! it is made to follow the school year, but can be adjusted to fit your needs. You can also easily adjust the ppt to fit the southern hemisphere as I based it on the northern hemisphere. Easy to switch. Enjoy!