Nature is full of models.
When molecules and atoms in a row in a pattern that is formed symmetrically, has crystals. With household items and a little 'technique, it is possible to grow crystals and watch them.
Notebook Speakers
Crystal salt
Materials:
Water * 1 / 2 cup hot water
× 1 aluminum cake pan
× 1 tablespoon
* 1 / 2 cup of salt
Nd block notes and a pen orPencil
Procedure:
1 Pour hot water into the pan
Pour 2 1 / 4 cup of salt water and stir until it melts
3 Continue to add salt, a tablespoon at a time until no more salt dissolves
4 Allow solution to cool slowly
September 5 the plate, where it will not be disturbed for 8-12 hours
6 record observations in your notebook
Crystal salt
Materials:
× 2 TBS of the RockSale *
• 1 cup hot water
× 1 scoop
× 1 tablespoon
× 1 pencil again
× 1 piece of rope
Nd block note and pen
Procedure:
1 Tie the rope around the middle of the pencil
2 Mix the salt in warm water until the salt dissolves
3 Place the pin on the top edge of the cup so the string in salt water
4 Place it in a bright, sunnyPlace, like a window sill
5 Not to interfere for two days, but check once or twice a day
6 record observations in your notebook
* Rock salt is sold in grocery stores and used to make ice
Crystal Sugar
Materials:
• 1 cup hot water
• 2 cups sugar
× 1 pint (16-ounce) jar
1 x pot
× 1 tablespoon
× 1 old towel
Nd block note and penor pencil
Procedure:
1 Pour the hot water in the pot
Pour 2 1 / 2 cup of sugar in water and stir until it melts
Stir in 3 1 / 2 cup sugar until it melts
4 Continue to add sugar, 1/2-cup at a time until it melts
5 Wrap a towel around the glass so that it cools slowly *
6 Leave the pot in a place where there are not disturbed for 2-3 days.
7.Record observations in your notebook
* For the crystalsto form the successful, the solution to cool slowly. Keep wrapped the glass and undisturbed
Crystal skiing:
Crystals actually grow, because melting in liquid solutions and gas fumes have evaporated by the heat. That's why you use hot water and cold all slowly.
How to Grow Crystals