Skrillex

Los cristales de bórax
Materials: Materiales:
• Beaker Beaker
• Pipe Cleaner Pipe Cleaner
• String String
• Borax powder (sodium borate) Polvo bórax (borato de sodio)
•Water Agua
• Hotplate Placa calefactora
• Pencil Lápiz

Procedure: Procedimiento:
• Put your name on the beaker with a sharpie Ponga su nombre en el vaso con un Sharpie
• Bring abeaker of water to a boil.  For a 250 mL beaker, add 4-5 heaping spoons full of borax and stir until dissolved. Trae un vaso de agua a hervir. Por un vaso de 250 ml, añadir 4-5 cucharadas colmadascompleto de bórax y revuelva hasta que se disuelva.
• Shape the pipe cleaner into any desired form, such as a heart, star, or Christmas tree, taking care that it is small enough to not touch the sidesof the beaker when immersed. Preparemos el limpiador de pipa en cualquier forma deseada, como un corazón, estrella o árbol de Navidad, teniendo cuidado de que es lo suficientemente pequeño para que notoquen los lados del vaso cuando se sumerge.
• Attach your design to a pencil with a string. Adjunte su diseño a un lápiz con una cadena.
• Dip the pipe cleaner in the solution and let itsit overnight, suspended from the rod and string. Sumerja el limpiador de pipa en la solución y déjela reposar durante la noche, suspendido de la barra y cadena.

Concepts: Conceptos:
•Supersaturated solutions and seed crystals Soluciones sobresaturadas y los cristales de las semillas
o By heating the water and dissolving the borax, you are able to dissolve more borax than what isnormally possible at room temperature.  As the solution cools, the solution is supersaturated until a seed crystal or other disturbance, such as your pipe cleaner, is added.  Crystals of sodiumborate will start to form on the pipe cleaner.  The pipe cleaner is a great surface for crystal formation because it has so much surface area on each little fiber. Al calentar el agua y disolver el...