Scholastic has vastly upgraded it's website and teacher resources and right now they have a very interesting collection of lesson plans and resources available centered around The Lorax movie which is coming out in theaters March 2nd. The resources are all science based lessons which explore the idea of sustainability and how we can make a difference. There are two sets of lessons for grades 3-5 and 6-8 and they include everything you need to teach the lesson including additional resources and activities.
Scholastic is really offering some great resources for teachers on this site and this is just one example. In addition to the lesson plans there are also some great printables and games for your students. While on Scholastic check out the daily starters or freebie corner.