Super Absorbant Crystals By The Pound

• Each crystal absorbs up to 300 times its weight in water.
• Hydrated crystals have the same index of refraction as water and will "disappear" in a glass of water.
• Allow water logged crystals to dry on wax paper and they will return to their original tiny size.

Super Absorbant Crystals : From YouTube

Super Absorbant Crystals By The Half Pound

• Each crystal absorbs up to 300 times its weight in water.
• Hydrated crystals have the same index of refraction as water and will "disappear" in a glass of water.
• Allow water logged crystals to dry on wax paper and they will return to their original tiny size.

Super Absorbant Crystals : From YouTube

Super Absorbant Crystals By The Ounce

• Each crystal absorbs up to 300 times its weight in water.
  
• Hydrated crystals have the same index of refraction as water and will "disappear" in a glass of water.
• Allow water logged crystals to dry on wax paper and they will return to their original tiny size.

Super Absorbant Crystals : From YouTube

Vortex Tube

• Use with your 2 liter pop bottles.
• Give it a whirl and watch a tornadic vortex develop. The swirling water creates higher pressure around the outer edge and lower pressure in the center. Air from the bottom bottle can then travel through the vortex into the upper bottle allowing the water to move down. Outer winds in a real tornado spiral upward and inner winds move down through the vortex.