W1. Inject one syringe of water into your smallest vial
W2. How many syringes of water can you inject into your smallest vial?
W3.
How many water drops can you obtain from one syringe?
W4.
Volumes of bigger vials
W
5. Volume of water increases during freezing
Solid water floats on liquid water 
......
W6.
Water for measuring volumes of Iron (Fe) and Aluminium (Al)
W7.
Mix 1 ml of water and 2 ml of sugar, measure the resulting volume
Coins as weights
W8. About balances and weights
W9. Cut your own weights from cans and wires
W10. How many drops of water equal 0.1 gram?
W11.Weigh 1-ml samples of different liquids =Density
W12 Density of Iron and Aluminium samples
W13. Distillation: Fresh water from sea water
W14. Mix samples of table salt and of clay with water
W15. Mix table salt with solid water (ice)
W16.Water vapour can directly transform into ice
W17. Egg steamer: Water vapour can drive a vehicle
W 18. Collapsing Cola can: Water vapour contracts during condensation
W19.
Leave different water samples to dry up
