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Engineering Self-Cleaning Hydrophobic Surfaces
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Educational Use
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This biomimetic engineering challenge introduces students to the fields of nanotechnology and biomimicry. Students explore how to modify surfaces such as wood or cotton fabric at the nanoscale. They create specialized materials with features such as waterproofing and stain resistance. The challenge starts with student teams identifying an intended user and developing scenarios for using their developed material. Students then design and create their specialized material using everyday materials. Each students test each design under specific testing constraints to determine the hydrophobicity of the material. After testing, teams iterate ways to improve their self-cleaning superhydrophobic modification technique for their design. After iterating and testing their designs, students present their final product and results to the class.

Subject:
Biology
Life Science
Physical Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
MakerChallenges
Author:
Krystle Dunn
Qilin Li
Seth Pedersen
Date Added:
08/29/2019
Simple Machines and the Rube Goldberg Challenge
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Educational Use
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Students research simple machines and other mechanisms as they learn about and make Rube Goldberg machines. Working in teams, students design and build their own Rube Goldberg devices with 10 separate steps, including at least six simple machines. In addition to the use of readily available classroom craft supplies, 3D printers may be used (if available) to design and print one or more device mechanisms. Students love this open-ended, team-building project with great potential for creativity and humor.

Subject:
Applied Science
Engineering
Physical Science
Physics
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
MakerChallenges
Author:
Brad Whitehead
Date Added:
10/30/2018