Question

A handful of soil is taken from a nearby garden and mix it in a clear glass partially filled with water. After stirring the mixture for sometime it is left undisturbed. What are the observations made after one hour?

• A. Different layers of soil are formed.
• B. Soil makes a muddy solution.
• C. It consist of granules of rocks.
• D. Lighter materials float on top and the heavier particles settle at the bottom.

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A Different layers of soil are formed.
B Soil makes a muddy solution.
C It consist of granules of rocks.
D Lighter materials float on top and the heavier particles settle at the bottom.

The different layers observed is due to the fact that soil is made up of different types of materials all of which have different sizes and weight. The lighter materials will float on top but the heavier particles settle at the bottom of the glass.
These layers consist of mud, granules of stones and some micro-organisms.