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a a and MicroChemn
VIDEOCLIPS   

..1.    „Microscale Chemistry“  no-cost / low-cost
..2.    No-cost containers 1: Liquemin ampoules, bottles, film canister
..3.    No-cost containers 2: TetraPak®: tray, dust bin
..4.    No-cost containers 3: Micro spirit burner: Burning, analysis of products
..5.    Burner with solid, liquid, gaseous fuel (candle, spirit burner, das burner) 
..6.     Egyptian Two-pan scale, paper weights, digital pocket scales
  7.     Piezo fuse from a disposable cigarette lighter
  8.     Disposable injection syringes not only for measuring volums of liquids

Properties of matter
..6.    Volume change during solidification of water, Cola, oil and wax
  7.    
Volume change during condensation of water vapour
  8.     Temperature/Energy-Diagram during cooling and warming water and salt water
  9.     Temperature/Energy-Diagram during warming and heating of  water 
 
10.    Temperatur/Energy-Diagram during heating of red wine
11.     Decreasing the boiling point of water by reduced air pressure
12.     Conductivity of heat and more heating of two can metals
13.    
Conductivity of heat 2: Ice cubes on aluminium and wood  
14.     Electric conductivity: Testing and semi-quantitative measuring
15.     Surface tension of water and influence of a detergent
16.     Testing and Measuring densities of polysstyrene samples (PS and EPS)
17.     Densities of liquids: weighing 1 mL-samples
18.     Densities of solids: Weighing, measuring volume of replaced water
19.  
Zündfunkengeber aus leerem Einwegfeuerzeug

Mischen und Trennen: Stoff-Gemische, Reinstoffe
Chemical effects of electricity and electricity by chemical reactions
11.    TESTING the electric conductivities of sugar-, salt-, citric acid, and Dead Sea salt solutions
12.    MEASURING the electric conductivities of water samples and solutions
13.    Conductivity of heat 1: Aluminium and steel cans
14.    Conductivity of heat 2: Aluminium and wood                  

15.   Electrolysis 1: Analysis of copper chloride, using the elements for a new electrolyis   Red cabbage indicator in a drop
16.   Electrolysis 2:  Red cabbage indicator in a drop  Water electrolysis and explosion in in a pipette and a wellplate (WP 6)
17.  
Electrolysis 3: Water electrolysis and explosion in in a pipette and a wellplate (WP 6)
18.   Electrolysis 4: Analysis of water in 2 ampoules and tests for the elements
19.  
Lithium battery as a working model (in memoriam Bernd Lutz)
20.   KG children produce electricity and conduct it from hand to hand (pressing a  Cu- and an Al piece)
21.   Electrochromism (Prof. Najdoski)

Scales and weighing
22.   Two-pan scale has higher precision than a digital pocket scale
23.    Two-pan scale for the  visualisation of atomic masses
24.    Digital Scale and dropper bottle (10 mL)  to make a 1M NaOH

Beads as models for atoms, molecules, ions
25.   Beads as models for atoms
26.   Beads as molecule models
27.   Diffusion of molecules from drops of ammonia and HCl
Properties of matter
28.   Density 1 (Dead Sea water 2): Divers in the Red Sat and in the Dead Sea
29.   
Density 2 Weighing water samples in 1-mL syringes
30.   Density 3: Weighing an aluminium wire, measuring its displacement of water in a 1-mL syringe
31.   Coductivity of heat 1: Stripes from an aluminium- and a steel can
32.   
Coductivity of heat 2: Aluminium und Holz  
33.   Dead Sea water 3: "Fractional crystallisation" of different salts (model experiment)
34.   Solubility 1: Dead Sea salt absorbs water from the air

35.   Solubility 2: Making a hypersaturated solution of sodium acetate
36.   Exothermic crystallisation from a hypersaturated solution of sodium acetate
 
37.   Indicators: Extraction from different leaves and using them  
38.   Ampulles 5: Titration of vinegar with  2 insulin syringes and an ampoule                                                                                                                                              
39.   Minerals 1 Transparent Gypsum: Heat decomposition, gravimetry
40.   Minerals 2 Marble alabaster (CaCO3) 1: Heat decomposition, gravimetric
41.   Minerals 3 Marble alabaster (CaCO3) 2: Lime water test of the gases
42.   Minerals 4 Marble alabaster 3: Quick lime reaction with water, calorimetry
43.   Minerals 5 Marble alabaster 4:  Closing the limestone cycle
44.   Minerals 6 Malachite 1: 
Heat decomposition and reduction of the product
45.   Minerals 7 Malachite 2:
Decomposition by acid
46.   Minerals 8 Three coloured copper salts from malachite decomposition
47.   Minerals  9: Uraninite, Radioactivity of  pichblende
48.   .....................Radioactivity of noble gases emanted from pichblende
50. 
......................Radioactivity of a tile (U), a wrist watch (Ra)  and an incandescent mantle (Th)

51.   Learning to use syringes in Kindergarten
   THE PIONEERS MICROSCALE CHEMISTRY DURING THEIR WORKSHOPS, MAY 2005:
49.    Ronald Pike                     50. Mohan Singh                51. Zvi Szafran


back.....first published: 24.08.2005....... last modification: 29.12.2007