Activity 7.9 Let us find out (Page 110) Light an incense stick in one corner of the room Class 8

Activity 7.9 Let us find out (Page 110) Class 8

Activity 7.9 Let us find out (Page 110) Class 8

1. Light an incense stick in one corner of the room.

2. Wait for a few minutes and observe.

3. Do you notice the fragrance from a distance? Class 8

Answer:

Observations:

1. We can smell the fragrance of an incense stick from one corner.
2. Slowly, the fragrance of this incense stick can be smelled all around the room.

Conclusions:

1. The smell of an incense stick can be observed throughout the room because the particles of air are moving randomly.
2. As the interparticle forces between the gaseous particles are weak, they can move freely around the room.