Why Your Skin And Streets Need Antioxidants
Conduct experiments with everyday antioxidants like lemon juice and chocolate, then learn how antioxidant byproducts from olive oil production can be repurposed for roads and cosmetics.
Hydrophobicity: Will the Drop Stop or Roll?
Investigate how different surface textures repel or absorb water.
Make a Wire Critter That Can Walk on Water
Learn how insects have inspired engineers to make a robot that walks on the surface of water. Design your own water-walking critter using thin wire, and test its effectiveness: how many paperclips can it hold up using surface tension?
Test the Finger Wrinkle Hypothesis
Perform an experiment to determine whether smooth or wrinkled fingers are better at holding wet objects. The experiment requires only a water bottle, paperclip, and plastic ruler.
Downloads: Video, student data sheet, illustrated instructions