This is an activity worksheet/labsheet to use when teaching science process skills. It is for use when teaching about "observation". The teacher passes out an Oreo cookie or something similar to each student. The instructions are on the labsheet, but the teacher should emphasize that observations must be able to be proven, not opinions. The student may eat the cookie after completing the activity worksheet/labsheet. Of course, it is important that the teacher checks to determine if anyone in the class has a food allergy to chocolate or other ingredients in the cookie.