Please select a subject first
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State whether the following statement is true or false.
A mixture of iron filings and rice flour can be separated by magnet.
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Name and describe briefly a method which can be helpful in separating a mixture of husk from grains. What is the principle of this method?
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How is the skeleton of a bird well-suited for flying?
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Match the mixtures in column I with their method of separation in column II.
| COLUMN I | COLUMN II | ||
| (a) | Oil mixed in water | (i) | Sieving |
| (b) | Iron powder mixed with flour | (ii) | Hand picking |
| (c) | Salt mixed with water | (iii) | Decantation |
| (d) | Lady’s finger mixed with french beans | (iv) | Magnet |
| (e) | Rice flour mixed with kidney beans | (v) | Evaporation |
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You are provided with a mixture of salt, sand, oil and water. Write the steps involved for the separation of salt, sand and oil from the mixture by giving an activity along with the diagram.
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A mixture of iron nails, salt, oil and water is provided to you. Give stepwise methods to separate each component from this mixture.
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Iron rim is made slightly smaller than the wooden wheel. The rim is usually heated before fixing into the wooden wheel, because on heating the iron rim ______.
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Which of the following is not the primary function of stem?
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The distance between Delhi and Mumbai is usually expressed in units of
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Solve the riddle given below:
“I have a green tender stem and I am much shorter than you. Who am I?”
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Identify the wrong statement and correct it.
Anther is a part of the pistil.
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Choose the correct option:
Which of the set of items good for making compost?
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Choose the correct option:
Which of the following animals are used for making compost?
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Choose the correct option:
Leaves falling from trees should be:
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Define composting.
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Explain the term vermicomposting.
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What are redworms?
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We should not add wastes containing salts, pickles, oil, vinegar, meat and milk products in vermicomposting pit to feed the redworms. Why?
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What do you mean by composting?
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Very Short Answer Type Question:
What is strainer?
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