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Fo 02 Try to make sugar crystals from sugar-cane juice
....
Around
1100 a. Chr. Knights of the Cross reported about cultivating and processing
sugar-cane in Palestine.
*
Left
and photo 2: Chew the marrow and collect the juice in bottles.
*
Photo
3: By boiling the juice you concentrate it and bacteria are killed.
You will obtain 30 ml of syrup from 200 ml juice.
*
Photo
4: Fix a small sugar candy by a thin copper wire and dip it into the
sugar syrup.
* Observation
right:
After one month the crystal has grown, the wire has disappeared inside
the crystal.
* Explanation:
A
huge number of invisible sugar particles have collected on the surface
of the growing sugar crystal. In Germany you might buy sugar-beet syrup
for this experiment.