Chapter-1 The Matter In Our Surroundings. Activity - 1.9 Characteristics Of Solids

[00:00:03][music] [music] >> Everyone, my name is Pranjali. I'm studying in ninth standard B section in Karnataka Public School Osair Nadu.

[00:00:18]Today I'm explanation to ninth standard chapter one matter of our surrounding.

[00:00:25]Uh activity activity number 1.9.

[00:00:30]Activity name characteristics of solids.

[00:00:33]We take materials of this activity.

[00:00:36]One white sheet, pencil, duster, test tube, nail, and cap.

[00:00:47]We draw the boundaries of these items.

[00:01:04]I will take first duster and draw the boundaries. Um and I will take test tube.

[00:01:15]Draw the boundary.

[00:01:21]And I take nail.

[00:01:24]Draw the boundary.

[00:01:31]Cap.

[00:01:41]I draw the boundaries of all these items.

[00:01:44]Um solids have a solids have a definite shape, distinct boundaries, uh and fixed volume. That is have a negligible compressibility uh negligible compressibility.

[00:02:00]Solid have a tendency to maintain shape.

[00:02:06]Uh when subjected outside uh when subjected outside force. You see the boundaries of all these items. Um I take hammer and hit the duster.

[00:02:23]Um duster is not do not change its shape.

[00:02:29]Uh I take cap and uh hit this.

[00:02:36]Do not break.

[00:02:39]Not changing shape.

[00:02:43]Nail Do not change its shape. This activity confirm confirming confirm that this have definite shape uh distance boundaries and >> [music] >> fixed volume.

[00:03:00]Thank you.