MicrEcol in Photos

Safety first
1. Work microscale (small materials, small amount of substances). 2. Work in a tray, ALWAYS use it. 3. ampoules Label first fill later
4. Syringes only from a pharmacy. 5. Even a candle burner must be used inside a tray. 6. Bind long hairs together. 7. Extinguish burners immediately after use. 8. Wear googles for chemical experiments. 9. Carefully wash your hands after experimentation. 10. Do not eat during experimentation.

W01Water covers two third of the earth´s surface - From ice berg to micro drop
W02 Not only water can be divided into smaller and smaller quantities: Fom litre(l) to millilitre (ml)
W03 Soap reduces surface tension of water
W04 Volume change during solidification of water and of Cola
W05 Micro spirit burner: Assembling , burning and safe extinguishing
W06 "Steam engine" - Increase of volume during boiling of water
W07 "Fountain" or implosion - Decrease of volume during condensation of water vapour
W08 Water has a mass - Learn how to handle a two pan scale, make weights

W09 Density of three liquids

W10 Comparing water samples by electricity.

2. Water: Separating and mixing
W11 Evaporation of water from different water samples
W12 Evaporation, condensation, collecting - Distillation of coloured fresh water
W13 Water content of a plant and an animal
W14 Water dissolves only few water
W15 Salt, sugar, citric acid - can you make them invisble?

W16 Salt, sugar, citric acid - can you make them visible again?
W17 Rock candy from sugar powder
W18 Extracting dye from blue petunia petals

4. Waters as habitats
W19 Flowing water, an interesting habitat - Turn stones in Lauter river
W20 Water butt as habitat - Bread mosquitos
W21 Sea water biggest habitat of the world - Cultivating brine shrimps

5. Chemical reactions: Analysis and synthesis
W22 Drop electrolysis - 4 new substances by decomposition of water
W23 Pipette electrolysis - Oxyhydrogen gas production and explosion
W24 Ampoule electrolysis - Oxygen and hydrogen
W25 About water molecules and hydrogen atoms