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A group of organs together make up an ______ system.
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We can say that mass of an object is 126 kg.
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Complete the analogy.
Milk : Volume :: Vegetables :___?
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Name any one instrument used for measuring mass.
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Scurvy is caused due to the deficiency of________.
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Vitamin D deficiency causes _______.
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Match the following.
| 1. | Vitamin A | a. Rickets |
| 2. | Vitamin B | b. Night blindness |
| 3. | Vitamin C | c. Sterility |
| 4. | Vitamin D | d. Beri beri |
| 5. | Vitamin E | e. Scurvy |
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Tabulate the vitamins and their corresponding deficiency diseases.
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The device which converts chemical energy into electrical energy is
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Secondary cell can be used only once.
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Arrange in sequence
| A CELL | A DEVICE | ELECTRICAL ENERGY |
| IS CALLED | IN TO | CHEMICAL ENERGY |
| THAT CONVERTS |
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Can the cell used in the clock gives us an electric shock? Justify your answer.
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Digestion of food is a physical change.
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In a solution of salt in water, water is the solute
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You are given some candle wax. Can you make a candle doll from it? What kind of change is this?
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Breakdown of food into smaller molecules in our body is known as
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The other name of food pipe is alimentary canal.
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Analogy
Enzymes: Digestive glands:: _______: Endocrine glands.
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Write any two functions of digestive system.
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