Activity 3.2 Class 8 Science Chapter 3
In this post, you will find NCERT
Science Class 8 Chapter 3 Synthetic Fibres and Plastics Activity solutions. Class 8 science chapter 3
consists of NCERT Activity 3.2
Class 8 Science Explanation with a conclusion.
NCERT Activity 3.2 Class 8 Science Explanation with a conclusion
You are suggested to study NCERT activity 3.2 class 8 science explanation
with a conclusion so that you can attempt questions based on activity 3.2
class 8 science.
Activity 3.2 Class 8 Science
· Take two cloth pieces of the same size, roughly half a mere square each.
· One of these should be from natural fibre.
· The other could be synthetic fibre.
· You can take the help of your parents in selecting these pieces.
· soak the pieces in different mugs each containing the same amount of water.
· Take each piece out of the containers after five minutes and spread them in the sun for a few minutes.
· Compare the volume of the water remaining in each container.
The procedure of activity 3.2 Class 8 Science
· At
first, we take four containers and fill them with an equal amount of water say 100mL.
· Now
we take pieces of the same size cotton, silk, wool and nylon.
· Now
put these pieces of cotton, wool, silk and nylon respectively in containers
A, B, C and D for five minutes.
· After
five minutes, take them out of the containers and spread them in the sunlight.
· We
observe the volume left in each container.
Observation of activity 3.2 Class 8 Science
We observe that no water is left in container A and more
water is left in container D.
Explanation of activity 3.2 Class 8 Science
Natural fibres like cotton, silk etc absorb more water
than synthetic fibres like nylon and polyester.
Synthetic fibres are durable on exposure to water so
they are used to make different things like wires, toys, and other types of equipment.
Natural fibres take more time to dry than synthetic fibres.
Conclusion of activity 3.2 Class 8 Science
This activity shows the water-absorbing capacity and durability
of natural and synthetic fibres.
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