Safety 1: Make your
tray
for all experiments
Safety 2: Use
your tray:Not
only sulfuric acid is corrosive
Safety 3: Lockable
bottles made of "waste": Lable
first, fill later
Safety 4: Acquaint
yourself with a syringe: Syringes
only from the pharmacy
Safety 5: Burning
and extinguishing a candle: Follow
the rules of fire protection
Safety 5: Carbon
dioxide for extinguishing fire: Follow
the rules of fire protection.
Experiments for physics grade 7 and 8: Heat (melting, solidification, smallest particles in movement) / Electricityback ,, go on .............................................................................................letzte Veränderung: 21.01.2005....
06 Burner 2: More about a candle
07 Burner 3: Burning, extinguishing, chemistry of a micro spirit burner: Follow the rules of fire protection
08 Burner 3: Heat at work: A candle as"steam engine"
09 Burner 4: Why does the fuel flow upwards in the wick?
09a What happens to the black felt pin colour in the paper? (zu "Chemie heute SI" 2001, S. 45 )
10 Burner 5: Heat conductivity and melting points of two can metals (zu "Chemie heute SI" 2001, S. 28 und 18)
11 Burner 6: Food as fuel for micro burners
12.Burner 7: Heating Cola to dryness, charing its sugar
13.Burner 8: Distillation of Cola: Demonstration of home experiments and improving
14. Comparing electrical conductivity of Cola and its distillate 1: Testing with a Light emitting diode.
15. Comparing electrical conductivity of Cola and its distillate 2: Multimeter for current, voltage and temperature
15a. Comparing electrical conductivity of Cola and its distillate 3: Measuring currents
16. Chemical change by electric current 1: Oxyhydrogen gas from sodium sulfate solution
17. Chemical change by electric current 2: Hydrogen and oxygen from sodium sulfate solution
18. Electrical current by chemical reactions 1: Which metal supplies the highest voltage / current?
19. Electrical current by chemical reactions 2: Chemical change of Aluminium