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Make sentences using the given set of words.
99%, oxygen, nitrogen, air, together
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A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
A weather cock shows the ______ in which the air is moving at that place.
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A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
Mountaineers carry oxygen ______ with them, while climbing high mountains.
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Observe the picture given in figure carefully and answer the following questions.
- What is covering the nose and mouth of the police man?
- Why is he putting a cover on his nose?
- Can you comment on air quality of the place shown in the figure?
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Observe the picture given in Fig. carefully and answer the following questions.
Why is he putting a cover on his nose?
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Observe the picture given in Fig. carefully and answer the following questions.
Can you comment on the air quality of the place shown in Fig?
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Garima observed that when she left her tightly capped bottle full of water in the open sunlight, tiny bubbles were formed all around inside the bottle. Help Garima to know why it so happened?
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Paheli wants to present her friend a gift made of plant-fibre. Which out of the following will she select?
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Which part of the jute plant is used for getting jute fibre?
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Explain the following observations very briefly
An empty glass in fact is not empty.
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Explain the following observations very briefly
Breathing through mouth may harm you.
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Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Oxygen
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Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Nitrogen
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Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Carbon dioxide
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On a Sunday morning Paheli’s friend visited her home. She wanted to see some flowering plants in the nearby garden. Both of them went to the garden. While returning from the garden they also observed some flowering plants on the road side. But to their surprise they found that the leaves and flowers of these roadside plants were comparatively very dull. Can you help them to know why?
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The method of preparing compost with the help of earthworms is called ______.
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State whether the following statement is true or false. If false, correct it.
Jute is obtained from the leaves of a plant.
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Fill in the names of useful items made from jute fibres in the following figure. One such example is given.
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Given below are steps in vermicomposting and each step has been given an alphabet. Rearrange the steps in the correct sequence and write the alphabet on the chart provided. One step is done for you.
F Dig a pit in a suitable place in your garden.
C Spread sand on the floor of the pit.
E Add vegetable peels and fruit waste to the pit.
A Sprinkle water to keep it moist.
D Place red worms in the pit.
B Cover with a gunny bag or grass.
Step 1 - F
2 -
3 -
4 -
5 -
6 -
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Answer the following question in one or two words or sentences:
Which one out of beetles, roundworm and earthworm are used for vermicomposting and why?
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