Magic sand is poured into a beaker of water. An air bubble separates
the magic sand from the water and makes it appear silvery.
Magic sand is sprinkled gently on top of water. Surface tension initially
keeps the sand floating on top of the water. When the weight of the sand
overcomes surface tension the sand sinks to the bottom
Water is poured out of a beaker containing magic sand. The magic sand
remains free flowing and dry.
Water drops are added to magic sand. The hydrophobic nature of the sand
makes the water drops highly spherical.
Drops of water added to magic sand and then absorbed by a paper towel.
Equal amounts of water are added to beakers of beach sand and magic
sand. All of the water can be recovered from the flask with magic sand.
None of the water added to beach sand can be poured back because the
water gets absorbed to the surface of the beach sand.
