Gummy Bear Lab
Objectives: After completing the lesson, students will be able to:
Use the metric system to quantify the changes an object
undergoes in a controlled experiment
Key Question: "What happens when a gummy bear is submerged in water overnight?"
Overview: This activity, written by OUSD science teacher Caleb Cheung, gives students a chance to demonstrate their ability to perform a controlled experiment with an object that has high student appeal: a gummy bear. Students are first challenged to write a hypothesis for the question, "What happens when a gummy bear is submerged in water for a period of 24 hours?" They use the metric system to quantify the "before and after" measurements of the gummy bear in order to test their hypothesis and answer the question.
Time Required: 1 and 1/2 class sessions (45-60 minutes the first session, and 15-30 minutes the second session).
Materials: see following page.
Procedure: see following page.
Assessment: completion of the "Gummy Bear Lab" student worksheet.
Homework: completion of the "Gummy Bear Lab" student worksheet.
OUSD Science Content Standards (State of California Science Content Standards):
#1-a through f, except c (7-a through e)
A Question of Size, Exploratorium 1996 guide on their "Exploration of Size and Scale" exhibit.
This activity makes an excellent culminating activity for Unit 1, since it assesses, through student performance, all of the key Content Standards developed in Unit 1 (with the exception of convection).
An alternative culminating activity that focuses solely on estimation and measurement is found in the "Mini-Metric Olympics" activity included at the end of the notes on this lesson. "Mini-Metric Olympics" was developed and published in Math + Science: a Solution, by the AIMS Education Foundation. Information about using AIMS material, which is consistently excellent, is also included at the end of the notes for this lesson.