हिंदी

Sugar, salt, mustard oil, sand, sawdust, honey, chalk powder, petals of flower, soil, copper sulphate crystals, glucose, wheat flour are some substances given to Paheli. - Science

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प्रश्न

Sugar, salt, mustard oil, sand, sawdust, honey, chalk powder, petals of flower, soil, copper sulphate crystals, glucose, wheat flour are some substances given to Paheli. She wants to know whether these substances are soluble in water or not. Help her in identifying soluble and insoluble substances in water.

दीर्घउत्तर
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उत्तर

Sugar - Soluble in water

Salt - Soluble in water

Mustard oil - Insoluble in water

Sand - Insoluble in water

Sawdust - Insoluble in water

Honey - Soluble in water

Chalk powder - Insoluble in water

Petals of flower - Insoluble in water

Soil - Insoluble in water

Copper sulphate crystals - Soluble in water

Glucose - Soluble in water

Wheat flour - Insoluble in water

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अध्याय 4: Sorting Materials and Groups - Long Answer Questions [पृष्ठ २५]

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एनसीईआरटी एक्झांप्लर Science [English] Class 6
अध्याय 4 Sorting Materials and Groups
Long Answer Questions | Q 25. | पृष्ठ २५

संबंधित प्रश्न

Very Short Answer Type Question:

Why do we need to group materials? Give one reason.


Very Short Answer Type Question:

Suggest two bases on which we can group objects.


Short Answer Type Question:

What is the reason for grouping materials?


Materials which can be compressed or cut easily are called _______.


Look at the pictures and identify the materials by which they are made of:

(paper, clay, glass, wood, plastic, metal rubber, wax

 

____________ ____________ ____________ ___________ _____________
____________ ____________ ____________ ____________ ____________

Write whether the given materials are hard or soft.

Wood  Eraser  Cotton
______ ______ ______

Test the flexibility.

Give one plastic scale and a wooden scale to the students. Ask them to bend. Tabulate their observation (bends, does not bend).

Plastic Scale Wooden Scale
______ ______

Choose the odd one:


Some of the following statements are incorrect. Find the incorrect statements and correct them.

  1. The property of metals by virtue of which they can be drawn into wires is called ductility.
  2. Metals are good conductors of electricity but poor conductor of heat.
  3. Articles made up of metals produce ringing sound when struck hard.
  4. Oxides of non-metals and metals are acidic in nature.
  5. A less reactive metal displaces a more reactive metal from its salt solution in water.

While doing an activity in class, the teacher asked Paheli to handover a transluscent material. Which among the following materials will Paheli pick and give her teacher?


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