The “Magic” of Density: A Unique Take on the 5E Lesson

Though none of the materials were toxic or dangerous, we still required students to wear safety goggles that we provided, as this taught and encouraged proper laboratory safety techniques. In our classroom, several students were on the right track with their models; however, a few tried to recreate...

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Bibliographic Details
Published in:Science scope (Washington, D.C.) D.C.), 2021-07, Vol.44 (6), p.74-83
Main Authors: MOSELY, JACQUELYN J., WHITWORTH, BROOKE A.
Format: Article
Language:English
Subjects:
Cups
Density
Discussion (Teaching Technique)
FEATURED READING
Formative Evaluation
Goggles
Grade 6
Laboratory Safety
Learning Processes
Middle school students
Middle school teachers
Oil
Protective equipment
Safety
Science education
Science Instruction
Scientific Concepts
Scientific Principles
Students
Video Technology
Water
Citations: Items that this one cites
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Summary:Though none of the materials were toxic or dangerous, we still required students to wear safety goggles that we provided, as this taught and encouraged proper laboratory safety techniques. In our classroom, several students were on the right track with their models; however, a few tried to recreate the magic trick using water bottles and small marbles, not understanding why the marbles weren't rushing to the top of the water once the second bottle was inverted. The next-tolast student to share created her model using a water bottle, two clear plastic cups, water, baby oil, and food coloring. When I filled the cups, the one with water felt heavier than the one with baby oil. Since the oil sat on top of the water, I think that means the beads weigh less than the water in the magic trick, which is why they went to the top.
ISSN:0887-2376
1943-4901
DOI:10.1080/08872376.2021.12291429