1. No-cost disposable
materials (packings)
Packings
are high quality containers for safe storage and attractive presentation
of food, cosmetics, medicine and other articles of daily use.
Some of these containers
can be reused
as no-cost materials for science experimentation (El-Marsafy).
These
materials are
available new at many places (rutkalab@t-online.de).
1.1 TetraPak
container(tray, container
for a kit, dust bin).
1.2
Ampoules (test
tubes, for the generation and collecting
of gases, as a micro spirit burner,
as a distillation apparatus, as an Erlenmeyer
flask, for germination of grain, electrolysis,
as eudiometer).
1.3
Metal closure of a Liquemin ampoule (200-mg
weights).