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Does the sound need a medium to travel?

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How a liquid can be changed into gas?

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What do you know about lever

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Describe with an example that how force changes the direction of object?

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Why unbalaced food is unhealthy?

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Write any three symptoms of Dengue fever?

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Why the total duration of one day and one night is 24 hours?

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Name at least three objects that are magnetic materials.

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Write a short note on wheel and axle?

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Write an activity to describe decantation?

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. What do you know about decantation?

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What are the necessary things for living things to survive?

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What is meant by enviroment?

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How plasmodium is trasferred to the human blood?

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Which part of our body decide how our body should respond?

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What happens when we apply force to a rubber band?

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Why a clinical thermometer has a small range?

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Give three uses of magnets.

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What do you know about reproduction?

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How plants make their food?

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