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Describe an experiment to make parallel circuit?

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Write an activity to make constellation in a can?

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Explain the resistance as an opposition to the flow of current.

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On which factors, the brightness of a star depends on? Explain them?

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Describe the flute as wind instrument?

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Decide which bag should be used for grocery. What is the right choice for it?

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How does acid rain form?

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Why clear swimming pools look shallower than their actual depth?

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What is meant by fertilizers?

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Define chemical change ?

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What is meant by normal?

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What is meant by colour of an object?

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How does binocular uses principle of total internal reflection?

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Define angle of incidence and angle of refraction?

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How refraction take place?

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What is meant by manure?

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Shortly describe the transfer of heat in solids?

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Why do we use woolen clothes and blankets during winter days?

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What is vacuum flask?

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Write down the applications of chemical changes?

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