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CandyBarDensityScienceLabActivity-1

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©K. Thomas, 2019
Teacher’s Guide
Objective
Find the density of three different candy bars.
Materials
3 different fun sized candy bars
Scale or balance
Beaker or graduated cylinder
Water
Recommended Group Size
2-3 students
Directions for Use
Students will be finding the density of three fun sized candy bars. These candy bars will get wet when placed in the
beaker/graduated cylinder of water, so I would recommend having extra on hand for students to snack on. Anytime
you are using food, the students will want to eat it!
This lab is quick and easy to set up and perform. It can be done in a 45 minute class period, or extended through
discussion for a longer class period. If you chose to, you could also have students find the volume by measuring
with a ruler and calculating Length x Width x Height.
©K. Thomas, 2019
Candy Bar Density Activity
Question: Which candy bar has the greatest density?
Materials:
3 different fun sized candy bars
Scale or balance
Beaker or graduated cylinder
Water
List the three types of candy bars:
1. _______________________________________
2. _______________________________________
3. _______________________________________
Hypothesize:
Which candy bar will be the densest? Why?
Which candy bar will be the least dense? Why?
Procedure:
1. Use the scale or balance to find the mass of each candy bar. Record the findings in the data table.
2. Next, use the graduated cylinder to find the volume of each candy bar.
• Put enough water in the graduated cylinder or beaker to cover the candy bar.
• Record the starting volume of the water without the candy bar.
• Place the candy bar in the water and record the volume of the water plus the candy bar.
• Calculate the volume of the candy bar and record in the data table.
3. Finally, calculate the density of each candy bar. Record in the data table.
Candy Bar
Mass (g)
1.
2.
3.
Candy
Bar
Volume of water without
candy bar (ml)
Volume of Water with
candy bar (ml)
Volume of the Candy Bar
(ml)
1.
2.
3.
Write the density equation:
Calculate the density of each candy bar
Candy
Bar
Calculation
1.
2.
3.
Conclusion:: Was your hypothesis correct or incorrect? Explain.
Density of Candy Bar
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