UEN Security Office
Technical Services Support Center (TSSC)
Eccles Broadcast Center
101 Wasatch Drive
Salt Lake City, UT 84112
(801) 585-6105 (fax)
Main Curriculum Tie:
Background For Teachers:
Density: amount of matter (material or “stuff”) in a given volume (amount of space).
An introductory density lesson should precede this lesson, in which students are exposed to the concept of density and gain experience measuring mass and volume and calculating density (using cubes of the same volume but made from different materials provides a good introduction).
This lesson challenges students to think critically about what actually makes the density of one object different than the density of another similar object using Hershey’s miniature candy bars. Other candy bar types would work well, but Hershey’s miniatures (milk chocolate, dark chocolate, Mr. Goodbar, Krackel) are convenient because all four candy bar types come in the same package.
Student Prior Knowledge:
Intended Learning Outcomes:
3. Demonstrate Understanding of Science Concepts and Principles
4. Communicate Effectively Using Science Language and Reasoning
This lesson can be completed in one class period. The experiment should be preceded by a brief review of the procedures required for accurate mass and volume measurements. Students should work in small groups (2-4 students per group) and observe the unwrapped candy bars. Before performing the experiment, students should write down a hypothesis for candy bar density, going from least dense to most dense. Students should discuss the procedures they would use to find the density of the candy bars. Students should recognize that in order to get precise volume measurements, they cannot use length x width x height because the measurements would not account for the irregularities (peanuts, etc) in the volume of the candy bar. The experiment should be followed by a discussion of density data collected by the students, and whether their hypotheses were confirmed or refuted.
Strategies For Diverse Learners:
Created Date :