Changing the Pencil
Lesson 5 of 7
Objective: Students will be able to identify specific processes that change the observable properties of a material and describe the processes.
I will begin this lesson by providing each student a new, unsharpened pencil. I will ask them to compare their pencil to the one of their neighbors (they will all be the same). I will ask them, what natural resource was used to create the pencil. I will lead a discussion about how human actions can modify the observable properties of an object, without changing the basic characteristics. I will explain to students that this week, they will be changing the observable properties of their pencil.
I will inform students that this pencil will be the only pencil that they will use this week in school.
Next, I will instruct the students to complete the day one section of the Observable Properties of My Pencil resource. To complete this section, students will write the date on the day one line and record the different observable properties of their pencil is the appropriate column on the chart. Students will refer back to this resource later in the week (day four).
I will conclude the lesson with a classroom discussion. As a whole group, we will make predictions about what we believe will happen to the pencil over the course of the next few days. What are some actions that we can take to change the observable properties? I will remind students that we will review our resource on day four.