Beading Water
Posted on Friday, April 3rd, 2009 at 5:16 pm
why does water form beaded droplets on surface such as leaves, waxed car hoods and waxed paper?
which intermolecular force is active?
Liquid water has a fairly high surface tension. Because the 2 hydrogen atoms are on one end of the water molecule and the oxygen the other end one side of the molecule (H side) has a slight positive charge. The O2 end has a slight negative charge. So there is a constant (though always changing) attraction between water molecules. The reason the surface tension forms beads is because a spherical shape encloses the most water with the least surface. So the cut off (truncated) spherical shape is the most energy economic to enclose a volume of water.
Auto Detailing: Hydrophobic effect / Water Beading / Water Sheeting
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Spin Master PixOs Super Studio $15.95 Just add water, and watch in amazement as the PixOs beads magically fuse together to create a work of art. When you’re done with your creation, finish it off by using the studio’s built-in dryer. Studio comes with 500 PixOs, two design trays, five double-sided templates, two instruction booklets, spray bottle, super studio unit with built-in storage, dryer and pen dispenser. Refills sold separatel… |
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Fun Fusion Fuse Bead Activity Kit: Water Whimsey $2.65 Fuse Bead Activity Kit. Each of these handy little kits are sized perfectly for rainy day projects, school, camp and even scout activities. Each package contains more than 2000 Perler beads to complete five projects approximately 3x 2-1/2in, three reusable assorted shaped peg boards, ironing paper, pattern and instructions. Shapes, sizes and colors vary by theme. These kits are available in a vari… |
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