CONCERT Science 7>Chapter 9 - Soil>STEP UP>Q 2

EASY

7th CBSE

IMPORTANT

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What is meant by soil profile?

Important Questions on Soil

HARD

7th CBSE

IMPORTANT

CONCERT Science 7>Chapter 9 - Soil>STEP UP>Q 2

Draw arrows and label the different horizons in the picture.
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MEDIUM

7th CBSE

IMPORTANT

CONCERT Science 7>Chapter 9 - Soil>STEP UP>Q 2

Why is the uppermost horizon generally dark in colour? How is this layer beneficial to plants?
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MEDIUM

7th CBSE

IMPORTANT

CONCERT Science 7>Chapter 9 - Soil>STEP UP>Q 2

Name the layer of soil down to which water can penetrate.
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MEDIUM

7th CBSE

IMPORTANT

CONCERT Science 7>Chapter 9 - Soil>STEP UP>Q 2

In which layer (horizon) are you most likely to find small insects and worms?
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HARD

7th CBSE

IMPORTANT

CONCERT Science 7>Chapter 9 - Soil>STEP UP>Q 3

In the box, rank these components of soil according to the size of the particles, from largest to smallest:
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Sand
Clay
gravel
silt

MEDIUM

7th CBSE

IMPORTANT

CONCERT Science 7>Chapter 9 - Soil>STEP UP>Q 3

In which of the following areas is the ground likely to dry up the fastest after a shower of rain? Give reasons for your answer.

HARD

7th CBSE

IMPORTANT

CONCERT Science 7>Chapter 9 - Soil>STEP UP>Q 3

The water table is the depth at which water can be found underground at a particular place. Name three factors that would affect the water table. (Hint: Think of where water comes from, how it reaches underground and how it is used).

HARD

7th CBSE

IMPORTANT

CONCERT Science 7>Chapter 9 - Soil>STEP UP>Q 4

A sample of soil is taken in a funnel lined with filter paper. The funnel is placed over a measuring cylinder. At $2 : 00 pm$ , Parveen starts to pour $200 ml$ of water slowly on the soil. She finishes pouring all the water at $2 : 10 pm$ . Given here are the readings of water levels in the measuring cylinder at different times. Look at the table and answer the question.