In this activity, learners explore how the application of nano-sized particles or coatings can change a bigger material’s properties. Learners investigate the hydrophobic properties of plants, nano-fabric pants and magic sand.
Quick Guide
Preparation Time:
5 to 10 minutes
Learning Time:
10 to 30 minutes
Estimated Materials Cost:
Over $20 per group of students
Age Range:
Ages 4 - adult
Resource Types:
Activity, Demonstration
Language:
English
Materials List
(per group of students)
Assortment of hydrophobic plant leaves, such as lotus leaves, nasturtium leaves, mustard greens, leafy kale, broccoli, or Chinese cabbage and an assortment of non-hydrophobic plants (iceberg lettuce, etc.). At minimum, 4-5 TOTAL leaves (note that more leaves will extend the length of the program)
Trays for plants
Beaker of Water
1 cup of cocoa mix and spoon or small strainer
1 Beaker filled with a purple liquid (water with food coloring will come out in the wash)
Swatch of non-treated fabric
Swatch of nano-treated fabric (search online for “stain resistant pants,” then check for the word “nano” in the garment description)
Miniature Pants made of nanotechnology stain-resistant fabric (search online for “stain resistant pants,” then check for the word “nano” in the garment description)
Regular-sized nano pants (search online for “stain resistant pants,” then check for the word “nano” in the garment description)
Water guns filled with purple liquid (to resemble grape juice) - optional
Tray and hanger for miniature and regular-sized Nano Pants, respectively