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 Class 8 Science revision questions and answers on properties of soil

The set-ups shown in the diagram below were used to investigate how water moves up in different types of soil.
figsoil27620201137.JPG
Which one of the following need NOT be the same in both set-ups?
A. Size of containers.
B. Size of glass tubes.
C. Amount of cotton wool in each glass tube.
D. Amount of soil in each glass tube.

 (3m 15s)
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