Crystal’s

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Term Paper Title	Crystal’s
# of Words	522
# of Pages (250 words per page double spaced)	2.09

     Crystal’s
          Of
      Wonder

                                                    Grant Fluga
                                                            5 Oct. 1998
                                                               6th Hour

   PURPOSE

     The purpose of this experiment was to observe crystals form.  To compare crystal shapes formed from different substances.  To compare crystal shapes from same substance formed during different lengths of time.  Last of all to determine if crystal shapes change when substances are mixed.

EQUIPMENT

     In this lab the equipment used was as follows.  Equipment consisted of a Monocular Microscope, Hot Plate, Chemical Forceps, Microscope Slides, Safety Glasses, Plain White Paper, Pencil, and different kinds of crystals.

PROCEDURE

Crystals from an evaporate:

1.  Place 3-4 drops of salt  (NaCl)  solution on a microscope slide.

Do not use a cover slip  (you want it to evaporate) .

Set the slide on a piece of paper with your name on it and place it
     on top of one of the cabinets.
     Allow it to evaporate overnight and observe it tomorrow.

Observe the crystals formed on the slide using the monocular
     microscope at high power.

Draw the shape of the crystal, measure the average crystal size
     and make any written observations necessary.

Compare the salt  (NaCl)  crystal that grew naturally to the ones
     you observed growing in lab.

2. Repeat #1 using a comparable amount of alum solution.

3. Mix and Match

Mix 2 drops of salt solution with 2 drops of alum solution.
Repeat #1


Crystals from a melt:

4. Place ~1 flake  (~1 g)  of paradichlorobenzene  (moth crystal)
       microscope slide.

     Heat the microscope slide by holding it with chemical ...

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