Question

Expenn
(Textbook Page 127; Lesson 24)
Aim: To pound solids of different types and make their powder
Materials : Mortar and pestle. chalk, small stones, groundnuts.
Method:
(1) Choose different solid substances.
(2) Place them in mortar and with the help of pestie try to pound them, one by one
13) At last, check whether you can pound a piece of rock.
(4) Note, which of the substances were easy to pound.
(5) Also observe whether you could pound the substance completely to obtain powder
(6) Note if a substance is hard or brittle.
Observations​

Answer 1

Answer:

oooooooooooooo oooooooooook