. . .

Materials
Wetted Multifiber 6 ( 5 cm x 5 cm) of experiment 1, dry Multifiber 6 ( 5 cm x 5 cm), Ägyptische Zweischalenwaage, insulated copper wire (D 0.6 mm), checkered paper, pen, scissors, alarm clock.
Experiment
1. Place the wet Multifiber 6 on the the left pan of the scale and a dry one on the right pan.
2. Balance the sacle by adding a piece of insulated copper wire on the right pan (Fig. 1).
3. Start the alarm clock (Fig. 1: 12.05), remove pieces of wire as soon as the scale is clearly unbalanced (Fig. 2: 12.10).
4. Fix the pieces of wire removed for re-balancing the scale on a checkered paper. Write down the times needed for evaporation.
Observations
1. After 5 minutes a slight loss of weight can be seen (Fig. 2)
2. After 115 more minutes  the rest of the wire can be removed (Fig.3). The drying process is finished, the two Multifibres have the same weight.
3. The following changes in weight can be measured after 13 / 29 / 50 / 65 / 80 / 120 minutes (Fig. 4):
4. 3.9 cm / 9.4 (3.9+5.5) cm / 17.2 (9.4 + 7.8) cm / 21.8 (17.2 + 4.6) cm / 26.8 (21.8 + 5.0) cm / 32.4 (26.8 + 5.6) cm.
Explanation
The wet Multifiber 6 had adsorbed water in an equivalent of 32 cm  wire (siehe nächstes Experiment).
The water evaporated. Plot a graph showing the loss of water [cm of wire] versus time.