This lesson plan has been written in the 5 e format. This lesson is also part of a unit plan. This unit plan may be sent at an additional fee but is not posted because the other lessons in the unit have been completed by other teachers. The unit focuses on Carl's question about littering on the playground. At the end of the unit students should be able to effectively answer the question. The lesson plan also contains all of the printed worksheets needed for the lesson. The lesson plan uses resources from a book entitled Science Is... and an online free resource called Garbage Pizza.