each strip
ht of the coloured water for all the
1. Cotton 2. Wool
cm
rd your observations.
ypes of cloths
Height of coloured u
Cotton
18:......
Wool
... cm
Nylon
... cm
Polyester
... cm
Silk
... cm
the experiment performed above, we see that
ntor more pasily.
Answers
Answer:
SCIENCE
WORKSHEET - 3B
Date:
Synthetic Fibres
property of various clothing materials.
hC
To study the water absorbing property of various cloth
led. White strips (15 cm x 3 cm) of various clothing materials
Things needed: White strips (15 cm x 3 cm) of
Procedure:
1 Clamp the strips of various clothing materials on a knitting needle with clin
1
2. The lower end of all the strips should be at the same level.
3. Place a tray under these strips.
4. Support the knitting needle on blocks, so that the lower
end of the strips is just above the bottom of the tray.
5. Pour blue coloured water in the tray so that the
lower end of the strips just dip into it.
Trough
6. After about 20-30 minutes, observe the level of blue
coloured water on each strip.
7. Measure the height of the coloured water for all the
1. Cotton 2. Wool 3.
strips.
Observation: Record your observations.
Types of cloths
Height of coloured wa
Cotton
Wool
Nylon
cm
Polyester
Silk
Conclusion: From the experiment performed above, we see that
cotton and wool absorb water more easily.
polyester and nylon absorb very little water.
Fill in the blanks with suitable words given the help box.
.... cm
.. cm
.... cm
....... cm
Explanation: