Кристаллы
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| + | # Grow our own crystals for a permanent collection from some of the following: ALUM, | ||
| + | SALT, SUGAR, BORAX, ROCHELLE SALT (or others). Grow at least four different | ||
| + | crystals. | ||
| + | # Learn to spell and define: | ||
| + | #* Efflorescent c. Piezoelectric | ||
| + | #* Deliquescent d. Refraction | ||
| + | # Spell, define, and memorize the six systems of symmetry. | ||
| + | # Make a collection of at least 10 crystals made by nature. (Examples: quartz, iron | ||
| + | pyrite, natural ruby, and other gemstones.) | ||
| + | # To show a useful electrical trait of crystals, grow a Rochelle salt crystal at least two | ||
| + | inches thick and conduct an experiment to show the piezoelectric effect to the | ||
| + | satisfaction of your instructor. | ||
| + | # To show a useful optical trait of crystals, grow a sodium nitrate crystal at least two | ||
| + | inches wide and demonstrate the phenomena of double refraction to the satisfaction | ||
| + | of your instructor. | ||
| + | # State at least five consumer items that require the use of crystals or are crystals in | ||
| + | useable form. | ||
Версия 19:03, 12 марта 2011
- Grow our own crystals for a permanent collection from some of the following: ALUM,
SALT, SUGAR, BORAX, ROCHELLE SALT (or others). Grow at least four different crystals.
- Learn to spell and define:
- Efflorescent c. Piezoelectric
- Deliquescent d. Refraction
- Spell, define, and memorize the six systems of symmetry.
- Make a collection of at least 10 crystals made by nature. (Examples: quartz, iron
pyrite, natural ruby, and other gemstones.)
- To show a useful electrical trait of crystals, grow a Rochelle salt crystal at least two
inches thick and conduct an experiment to show the piezoelectric effect to the satisfaction of your instructor.
- To show a useful optical trait of crystals, grow a sodium nitrate crystal at least two
inches wide and demonstrate the phenomena of double refraction to the satisfaction of your instructor.
- State at least five consumer items that require the use of crystals or are crystals in
useable form.
