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NCERT 6th Class (CBSE) Science: Sorting Materials into Groups

NCERT 6th Class (CBSE) Science: Sorting Materials into Groups

Question: Name the different properties that materials have?

Answer: Materials have different properties like roughness, luster, transparency solubility, flotation, attraction towards a magnet, conduction of heat and conduction of electricity.

Question: What are miscible and immiscible liquids? Give three examples each.

Answer: Liquids that dissolve in water are said to be miscible in water. For example: Alcohol, vinegar lemon juice, honey and glycerin. Liquids that do not dissolve in water are said to be immicible in water. For Eg – Kerosene, coconut oil and diesel.

Question: Name two gases that are soluble in water.

Answer: They are:

  1. Carbondioxide
  2. Oxygen

Question: What are magnetic material? Give two examples.

Answer: Material that are attracted to magnet are called magnetic materials. For Eg- Iron, Nickel etc.

Question: How are different materials grouped depending on transparency?

Answer: They are:

  1. Transparent:  Materials that allow all the light to pass through them For Eg – Glass sheet, water etc.
  2. Translucent: Materials that allow some light to pass through them For Eg – Colored glass, oiled paper etc.
  3. Opaque: Materials that allow no light to pass through them. For Eg – Wood, stone etc.

Question: Give three characteristics each of solid, liquid and gas.

Answer: Solid:

  1. Definite shape and volume.
  2. Cannot be compressed.
  3. Particles are closely packed.

Liquid:

  1. Definite volume but no definite shape.
  2. Can be compressed to small extent.
  3. Particles are not so closely packed.

Gas:

  1. No definite shape and land volume.
  2. Highly compressed.
  3. Particles are loosely packed.

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One comment

  1. Thanks for this all of the experiments.

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