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Expalin the peculiar behaviour of water during contraction and expansion.

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Describe the uses of expansion and contraction of liquids.

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Investigate the processes making use of thermal expansion of substances.

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Describe the causes of gas pressure in a container.

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Describe the working of thermometer.

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The mass of a bag of floor is 10kg.What is the mass in grams.

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Elaborate the working of aerosols?

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Describe liquid pressure in closed containers.

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Describe the term atmospheric pressure.

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Describe the application of gas pressure

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investigate the means used by scientists and engineers to overcome the problem of expansion and contraction in everyday life.

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Explain how gases behave under pressure

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How chemical equation is written?

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What is a pH scale?

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Describe the effects of deforstation on wildlife?

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How is litmus solution is prepared ?

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What do you know about ozone depletion?What do you know about ozone depletion?

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Define basis

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When does a chemical reaction takes place in a substance?

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Write some uses of nitric acid.

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