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Following the directions in the post above,
Scholar cut out a short, fat tree.
It was a soft cardboard,
I would like to redo this experiment with a stiffer cardboard
that would "melt" less once saturated with water. |
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The tree was approximately the height of my hand. |
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He colored the tree with markers for a while,
then we found the food coloring.
I think the darker colors work better than soft or neon.
The container was sandwich size. |
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Within a few hours (4 - 6),
the water had drawn up into the tree,
and tiny salt spots were beginning to form. |
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By supper time (another 2 hours),
the spots were much bigger. |
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And by the time I went to bed
(another 4 - 5 hours)
there was a fine fuzz of crystals. |
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Oct. 16 |
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By morning,
the crystals were beginning to be well developed.
We were all amazed and delighted. |
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Lunch time |
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By late afternoon,
the crystals had some real character. |
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I absolutely went crazy trying to capture their beauty. |
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Late evening |
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Oct. 18 |
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I added a little more water ...
really should not have done that,
as the cardboard became wobbly. |
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Oct. 20 |
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With most of the water evaporated,
the color began to fade rapidly. |
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And every time it was bumped,
a fine "rain" or "snow" of crystals fell. |
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I was SHOCKED to discover how powder soft they were. |
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Where the powders fell,
new Crystals began forming.
It was amazing,
but my tree was crumbling,
so we had to put our experiment away. |
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We saved the crystal powder,
we plan to make a new tree,
and add water,
and see if it will make a new tree!
We also hope to experiment with turning this into a Christmas present
in a baby food jar.
for more information:
http://www.ehow.com/how_5615085_make-crystals-bluing.html
http://www.ehow.com/info_8702301_ammonia-bluing.html
http://www.newton.dep.anl.gov/askasci/chem00/chem00999.htm
http://www.chymist.com/Crystal%20tree.pdf
Very neat. I actually purchased this experiment at an educational store a few years ago for Melissa. It did the exact same thing, but cost a lot of money! You are an excellent mom and teacher Rachel! :)
ReplyDeleteHugs...
Debbie