The vibrating motion of most sound waves is far faster than your waving hand, and is therefore just a blur to human eyes. The sound waves traveling down a plucked guitar string are not invisible. They are just moving so fast that the plucked guitar string looks like a blur...
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December 2022
Presence of sugar in food sample can be tested using________________. Benedict's solution Iodine solution Iodine and caustic soda Caustic soda and copper sulphate
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December 2022
Shallow ponds, in which sea water is trapped to make salt on a large scale, by the process of evaporation are called 1 point Lakes Lagoons none of the given options Tanks
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December 2022
India is the largest producer of _____________ products in the world followed by Bangladesh. 1 point Flax Coir Cotton Jute
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December 2022
Which of the following animal has different eating habits compared with the options given below. 1 point Dog Giraffe Elephant Cow
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Materials that can be compressed easily are called 1 point Insoluble materials Hard materials Soluble materials Soft materials
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December 2022
If you cover a lighted torch with a piece of butter paper then the brightness of light will be 1 point More Less Not effected None of these
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December 2022
Melting of a wax is a _________________ change. 1 point Captionless Image Natural Reversible Irreversible None of these
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December 2022
When various liquids like glycerine, kerosene, vinegar, mustard oil and alcohol are mixed in water, Glycerine,alcohol and vinegar forms a single layer whereas kerosene oil and mustard oil do not get mixed with water and forms separate layers because Kerosene oil and Mustard oil are immiscible Kerosene oil and Mustard...
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December 2022
An example of a change which occurs on mixing two substances, but can be reversed.Mixing of washing soda and lemon juiceMixing a quick lime with waterMixing curd to warm milkDissolving salt in water
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December 2022
Grouping things into separate groups on the basis of their similarities and dissimilarities is called 1 point Nomenclature Identification Classification Separation
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December 2022
Kavya bought a jam bottle from the market. On returning home she tried to open it. But she was not able to open the metal lid of the bottle. What according to you is the best way to open it? She should dip the lid in hot water. She should...
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December 2022
Cotton crop is grown in ______________ soil. 1 point White Brown Red Black
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December 2022
I must be eaten in moderate quantities. I provide warmth to the body. What am I? 1 point Vitamins Carbohydrates Proteins Fats
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December 2022
Soaking of jute stem in water to remove the sticky matter that holds the fibres inside the stem is called ginning.
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December 2022
Kavya bought a jam bottle from the market. On returning home she tried to open it. But she was not able to open the metal lid of the bottle. What according to you is the best way to open it? 1 point She should dip the lid in hot water....
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December 2022
A potato remains a potato even after it is cooked. Hence, cooking is a _____________ change. 1 point Reversible Chemical Natural Physical
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December 2022
Which of the following is a good source of vitamin C? 1 point Lemon and Orange Milk Egg Yolk Meat
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December 2022
The substance made up of only one type of atoms is known as _____________. 1 point Matter Compound Element Particles
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December 2022
Carbonated drinks are mixture of _____________ gas in water. 1 point Carbon- dioxide Hydrogen Methane Nitrogen
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December 2022
An example of a change which occurs on mixing two substances, but can be reversed. 1 point Mixing of washing soda and lemon juice Mixing a quick lime with water Mixing curd to warm milk Dissolving salt in water