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Science progress affects our daily life and "to know" means you are going to chose right, because it allows you to form your own opinion on scientific everyday issues. On the other hand, having an elegant and harmonious vision of the world where we live in leads to a feeling of intellectual satisfaction.
We believe this kind of scientific day to day knowledge should be encouraged from an early age, and that's why this project was born: science, culture, knowledge, crafts for your restless mind.

Monday, December 5, 2011

How to do Slime

Homemade slime is very easy to do and give us hours of fun.

What we need:
  • white glue,
  • 2 plastic cups, trash it when you finish it,
  • food coloring (green is the classic but you can make red or blue slime, chose your favorite color),
  • water,
  • borax (you can find it in drugstore),  
  • plastic tablespoon,
  • regular tablespoon.
How to:
  1. Fill 1 cup with water;
  2. Add a Borax tablespoon, use the plastic spoon and mix well,
  3. Reserve this solution,
  4. On the other cup measure about 1in of white glue,
  5. Add 20ml of water (that's about 3 tablespoons),
  6. Mix,
  7. Add 4 drops of food coloring,
  8. Add to the second cup 1 tablespoon of Borax solution,
  9. Mix,
  10. Wait 30seg,
  11. Play with it.

  • Slime is totally safe for the skin.
  • Keep the slime closed in a jar when you are not playing with it.
  • Don't use it near your hair or carpets and rugs.
  • Keep it away from the younger children and pets.
  • Don't eat it.
The polymer formed is both a solid and a liquid. This polymer can behave like a liquid and take the shape of the glass, and yet, you can hold it in your hand like a solid. Substances like this one are called non-Newtonian fluids... and what is this? Exactly what we wrote before, or in scientific speech is a fluid whose viscosity is variable depending on the applied pressure.

You can make this demonstration an experience
Answer with your restless to the following questions:
  • How does the Slime change with the Borax quantity in the first solution?
  • How does the Slime change with the Glue quantity in the second solution?  
  • What is the best way to store your slime? Try several yes of boxes, jars, bottles..
  • Does the Borax trademark make a difference? Witch one works best?
  • What about the glue?
  • What is the ideal water quantity? Try to do several slimes with different water quantities.
Never change 2 or more variables at the same time. For instance, if you change the water quantity keep the glue trademark the same.

Et Voilá!
You want fun? Play with non-Newtonian fluids


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