Please select a subject first
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State whether the following statement is true or false. If false, correct it.
Silk is a plant fibre.
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Once, Paheli visited a tailor shop and brought home some cuttings of fabric to study their properties. She took two pieces and found that one of the pieces were shrinking when it was burnt with a candle. However the other did not shrink on burning. Can you help her to find out which of the two was a cotton fabric and which a silk fabric?
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Fill in the blanks to complete the life story of cotton fibre.
My parents, cotton plants were grown in ______ soil and ______ climate. The plants bore fruits called ______. I, the cotton fibre was separated from seeds in the cotton bolls by the process of ______. Other cotton fibres and myself were made into yarn by the process of ______. The yarn was ______ to give beautiful colours and then ______ to get cotton fabric.
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A cotton shirt, before it reaches you, completes a long journey. Elaborate this journey starting from cotton bolls.
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You are provided with the following materials
- Magnifying glass
- Mirror
- Stainless steel plate
- Glass tumbler
Which of the above materials will you identify as transparent?
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Which type of the following materials is used for making the front glass (wind screen) of a car?
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Which among the following materials would you identify as soft materials and why?
Ice, rubber band, leaf, eraser, pencil, pearl, a piece of wooden board, cooked rice, pulses and fresh chapati.
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You are provided with the following materials – turmeric, honey, mustard oil, water, glucose, rice flour, groundnut oil.
Make any three pairs of substances where one substance is soluble in the other and any three pairs of substances where one substance remains insoluble in the other substances.
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During summer holidays, a group of children collected a lump of salt, green grass, broken glass piece, a small thermocol box, pen, iron nail, glass marbles, hair, naphthalene ball, a piece of sugar candy (mishri) and tried to group them on the basis of properties given in table below. Help them in filling the table.
| Name of the material |
Appearance (Hard/Soft) |
Transparency (Transparent/ Translucent/ Opaque) |
Floats/ Sinks in water |
Soluble/ Insoluble in water |
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Arrange the jumbled words to arrive at the appropriate name of material and also write two uses of it.
milaunuim
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Arrange the jumbled words to arrive at the appropriate name of material and also write two uses of it.
tcaslpi
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Arrange the jumbled words to arrive at the appropriate name of material and also write two uses of it.
soekrnee
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Arrange the jumbled words to arrive at the appropriate name of material and also write two uses of it.
gavnier
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Provide one word answers to the statement given below.
Framework of bones which gives shape to our body.
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Chalk, iron nail, wood, aluminium, candle, cotton usually look different from each other. Give some properties by which we can prove that these materials are different.
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Boojho’s grandmother is suffering from diabetes. Her doctor advised her to take ‘Lassi’ with less fat content. Which of the following methods would be most appropriate for Boojho to prepare it?
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Paheli asked for a glass of water from Boojho. He gave her a glass of ice cold water. Paheli observed some water droplets on the outer surface of the glass and asked Boojho how these droplets of water were formed. Which of the following should be Boojho’s answer?
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State whether the following statement is true or false.
A mixture of oil and water can be separated by filtration.
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Unscramble the jumbled word and write it in the blank space provided.
arctigeal ................
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State whether the following statement is true or false.
A mixture of wheat grains and wheat flour can be separated by sieving.
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