Question

Write down the reason for the following:
a) Ink can be blotted with chalk.
b) Sweat can be blotted with tissue paper.​

Answer 1

Answer:

These phenomena occur due to capillary action. The ink rises up in the capillaries found within a piece of chalk, i.e. the nooks and crevices in the structure of a piece of chalk. Same goes for sweat and tissue paper. A piece of tissue paper has several paths within itself which act as capillaries.

Sweat rises up in these capillaries and gets absorbed.

Answer 2

Answer:

These phenomena occur due to capillary action. The ink rises up in the capillaries found within a piece of chalk, i.e. the nooks and crevices in the structure of a piece of chalk. Same goes for sweat and tissue paper. A piece of tissue paper has several paths within itself which act as capillaries.

Sweat rises up in these capillaries and gets absorbed.

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